Tag Archives: bullet

1500 people shot in Detroit, 4/5 survive; some thoughts.

There are two remarkable things about shootings in Detroit. One is how many there are. About 1500 Detroiters last year, about 0.2% of the city’s population. The other remarkable tidbit is that only about 1/5 of them died. More specifically, there were 1173 non fatal shootings. There were also 327 criminal homicides, but many shooting deaths in Detroit are non-criminal, as in self-defense, or police interventions, and there are also many criminal homicides that are done with knives or poison. Put this together and it seems that only about 1/5 or those shot, perhaps 327 out of 1500 total. The headline from June 21, 2020 reads: 1 fatal, 11 non-fatal shootings in Detroit overnight. You almost feel like getting these guys marksmanship lessons, but there seems to be more at play.

Even in photography, a fair percentage of shooters miss simple head shots.

The number of shootings are way up this year, and drugs – alcohol is to blame, here and in other cities. People have lost their jobs to COVID and globalization, more in Detroit than in most cities, but the government has offered checks that are used for alcohol and drugs. Most Detroit shootings begin as arguments that turn violent. There is also some gang shooting, enhanced by a bout of prison releases, because of COVID.

Drugs and alcohol help explain the low death rate. It’s hard to shoot straight when you’re drunk or stoned, and hard even if you’re not, as Alexander Hamilton found. In Detroit, many of these hit were hit in non-vital areas (I tell folks to avoid those areas :). But another part of the low death rate is lower caliber bullets. Military caliber bullets were in short supply this year, and as best as I was able to tell, a fair number of shootings were with 22 and 25 instead of the military cartridges, 9mm and bigger that were popular years ago. A 9mm cartridge is shown as the center picture below, between a 22lr and a 45. Big bullets make for big holes and high death rates.

Per capita, the Detroit shooting rate is about 15 times that of New York City. New York saw roughly the same number of shootings as Detroit, 1,531 in a city 15 times bigger, and 462 criminal homicides The cause does not appear economic. but social. When Detroit’s unemployment rate fell, the murder rate did not. Thanks to COVID, Detroit’s unemployment rate is lower than New York’s. My only thought is that the culture is the difference, that the culture in New York is such that arguments do not turn violent as regularly.

Size comparison; 22, 9mm, 45. Big bullets leave big holes.

Stricter gun laws will not help, I think. Michigan’s gun laws make it hard to own pistols with barrels less than 16″ long. The net result is that most crime in the city is done with illegal guns. In general, countries with strict gun laws have more violent crime, not less. I would like to encourage private citizens to choose smaller bullets for self defense though, 22 or 32, and not military grade, 9mm. As a private citizen, you have to bring in the criminal, or storm a building. Your only goal is to get the criminal to stop without harming yourself. A 22 will get the criminal to stop. It will killl too, just less often. A 22 caliber bullet killed Bobby Kennedy, and Reagan was nearly killed with one. A small caliber bullet is less likely to kill you in an accident, or to kill people standing behind the target. This year, some 11 police forces came to a consensus report on use of the minimum of force necessary; read it here. For a private citizen, that’s a 22. Besides, speaking from my own limited experience, I find it easier to aim a small bullet.

Robert Buxbaum, January 10, 2021

MI hunting: You can arm bears; you just can’t buy bullets.

Large chunks of Michigan shut down for the prime days of hunting season, from the middle of October to early November. About 8% of the state gets a hunting license each year, some 800,000 people, all trying to “Bag a buck.” Michigan is an open carry state for rifles and holstered pistols, something seen recently in the state capitol, I’d say this was an illegal example since there is also a brandishing law, but it gives a sense of things here. About 29% of the state owns at least one gun, and usually more. There are about as many guns as people. Getting bullets, on the other hand, is near impossible, both for handguns and for most rifles, shotguns excluded.

A lot of the attraction of hunting is that you get to eat what you kill. Mot people do this or donate it to a food back. Hunting is also cheaper than golf. Rural farmers also hunt to protect their crops from crows, squirrels, rabbits, rats, snakes, and raccoons. This is legitimate hunting, in my opinion, even though you typically don’t eat crow. Some people do hunt bear, but that’s a different story (I like to be dressed). It’s possible that the bullet shortage is just a hiccup in the supply chain, “supply and demand” but it’s been going on for 12 years now so I suspect it’s here to stay.

Michigan, was once a Republican, pro-gun stronghold. It has swung Democrat and anti-gun for the last few years. Bulletes have been scare for about that long, at least since the Obama election or the Sandy Hook shooting. Behind this is a general trend of urbanization and class-action law suits. At this point, few sporting stores carry guns or bullets, and those that do, tend to hide them in a back room. Amazon carries neither bullets nor guns, and the same holds at e-bay, Craig’s list, and Walmart on line. Dunhams still sells guns but the only bullets, when I visited today were, 17 caliber, 227 and duck-hunting, shotgun shells. Gone were normal handgun calibers: 22, 25, 32, 38, 45, 357, and 9mm. The press seems OK with duck or moose hunting; not so OK with anything else.

The salesman at Dunham’s said that he had moved to bow hunting, something that’s becoming common, but it’s incredibly difficult even with modern bows. I can rarely hit a non-moving target at 50 feet on the first arrow, and I can only imagine the frustration of trying to hit a moving target after sitting in a cold blind for days waiting for one to appear whose distance and placement is unknown, and that might disappear at any moment, or attack me then disappear.

Part of the problem is that arrows travel at only about 250 ft/s, or about 1/6 the speed of a bullet. Thus, an arrow fired from 50 yards takes about 0.6 seconds to hit. In that time it drops about 6 feet and must be aimed 6 feet above the deer if you hope to hit it. A riffle bullet falls only about 2 inches, about 1/36 as much. Whaat’s more, though an arrow is about three times heavier than a hunting bullet, its slow speed means it hits with only about 1/10 the kinetic energy, about the same as hunting with a 22 from a handgun.

There are those who say the bullet shortage will go away on its own because of supply and demand. That’s true until the government steps in in the name of public safety. Though recreational marijuana and moonshine are both legal, government regulation means that prices are high and supply is limited, with a grey market of people buying high and selling higher. I’m seeing the same with ammunition; there is tight supply, a grey market, and a fair number of people trying to reload spent ammunition using match-tips for primers. Talk about white lightning.

R. E. Buxbaum, December 24, 2020.

A pacifist’s personal protection, a 22 revolver.

Before a pacifist buys a gun, there are two critical questions to ask: One is ‘how would I feel if I killed a criminal?” The other is ‘how would I feel if I missed and killed someone else? In my case, I’d feel awful either way. My thinking, even with the criminal, is that I tried my best to do more good than bad, and part of that is to minimize the chance of killing needlessly. Statistics suggest that gun carrying, in general, does good by deterring violent criminals. To be able to stop a deadly attack, while minimizing the chance of killing– particularly an innocent bystander — I’m inclined to a low power gun that’s easy to conceal and easy to aim well. This leads me to suggest a 22 revolver with a barrel that’s not too long to conceal, nor too short for good aiming, 2.5-4″ seems ideal.

An analysis of what percent of people stop attacking when hit by one bullet of different calibers. The 32 and shotgun are the best, in part because the shooter tends to stop shooting at one shot. With a 9 mm, the shooter keeps on shooting, likely doing more damage than necessary.

At this point I’d like to say that I am not a gun expert. I’ve fired perhaps 15 guns in my life including 5 revolvers. The easiest of these to shoot was a Glock 9mm, heavy, large and powerful, but it think it would be too large to carry or draw in a deadly situation, and the Glock was not cheap. The 22s were all smaller guns, and the 22 cartridges, especially the 22lr, are dirt cheap, costing 8 to10¢ each, or $40-$50 for a box of 500. It’s not the 9mm are super expensive, but they cost 25-30¢ each or $25 to $30 for a box of 100. The price is higher today, over $1 each, because of an ammo shortage, but it’s coming down.

Another advantage of the 22 is that the kill power is lower. A 9mm round will go through the person you are shooting at, and kill the person behind, and can kill on a riccoshet. I like that the 22 won’t do this. I also like that the 22, more effective than almost any other round at stropping a criminal, and getting him to go away. As the chart above shows, there is a 60% stop after the perpetrator is hit once, and that’s my goal — getting him to go away. A shotgun is far more effective as a deterrence, over 80%, but it is much more likely to kill, and much harder to conceal carry. The chart above is from a wonderful analysis of the effect of different calibers used in crimes, read it here. The author, Greg Ellifritz, suggests that the reason the 22 is so effective at stopping a criminal is psychological: criminals stop if shot even once, especially from a civilian, and only civilians use 22s. Larger calibers are better appear to be less effective, though they will be better at stopping a really determined attacker, e.g. someone on PCP. But that’s not the environment I work in, and I suspect it’s not the majority of crime. Overall, one shot from a 9mm does not do a good job stopping an attacker. Another good option is a 32. It was the choice of Theodore Roosevelt and J. Edgar Hoover. It tends to be used by detectives and other professionals, but the bullets are expensive.

I’ve done a meta-analysis of Greg Ellifritz’s death data, and confirm that the 22 is the second least deadly of all bullet types, after the .25. Of 154 people hit with 22 bullets, there 28% fatalities, 43 deaths. The 9mm is more deadly: of those hit with a 9 mm bullet, 44% died, in part because people shooting 9mm tend to shoot more bullets, nearly twice as many as 22 shooters in danger situations.

It takes two hands to cock a semi-automatic, that is to draw the first round into the chamber. Gif from ammuniotndepot.com

Handguns for 9mm rounds tend to be semi-automatic with light triggers and large magazines. Guns for 22 tend to be revolvers with heavier triggers and small loads, 5 to 7 rounds. I suspect that a light trigger leads to more missed shots and misfires, and I notice that many folks with semiautomatics, find they jam in danger situations. In the famous duel between Hamilton and Burr, Hamilton hit the branch above Burr’s head, likely because he’d set his trigger very light. Burr’s trigger was set heavy, and he shot straight. When you are nervous, gun with a light trigger can go off early and miss or kill the wrong person. A lot of the people killed with guns in Detroit, I notice, were killed by mistake, because the shooter missed, or because of a ricochet (I did an analysis of Detroit crime early on in this blog). A ricocheting 22 has very little kill power left.

A single action revolver requires cocking by that can be done with one hand; a double action doesn’t need any cocking. Gif from ammuniotndepot.com

Every semi-automatic I’ve tried required a two handed, “racking” step, see above. Thus, unless you leave a cartridge in the chamber while walking around, you need two free hands and an extra second or two to rack the first bullet before you can shoot. That’s OK on a range, but in a danger situation racking is a problem. Even trained policemen with semi-automatics have been killed by knife-wilding criminals because the criminal didn’t need the extra second or two while the policeman racked the first round.

Racking takes strength and coordination, plus an awareness of legal isuess. If you rack too soon and the situation de-escalates, you could be charged with “brandishing.” In most states it’s illegal to brandish a weapon in a non-deadly situation. You have to wait with your gun in your pocket or holster until you are in mortal danger. With a revolver, you don’t need to rack. Even a single action revolver can be cocked with one hand while the weapon is in your pocket. See the process in the figure above. Double-action revolvers don’t require cocking, and that can be a plus. On the other hand, I figure that the sound of a gun cocking might be useful to signal to a criminal that you are serious without getting you into the problems of brandishing.

De-cocking a single action revolver.

Revolvers have another interesting plus in that it’s easy to un-cock revolver, even using one hand, see gif. With semi-automatic pistols, there rarely a graceful way to remove the bullet from the chamber, certainly not with one hand. In theory, you can shoot from your pocket too; it’s something I’ve seen in the movies, but a semi-automatic will almost certainly jam if you try. If the assailant grabs your arm, or otherwise attacks you, you have every right to fire, but you don’t want a jam, or to hit yourself. Most defensive shootings are from close range.

Speaking of jamming, even experts get jams on a fairly regular basis, and beginners have this problem a lot. They forget to hold the gun tightly enough, or they buy rounds that don’t quite match the gun. Rounds that are too weak or powerful cause problems for semi-automatics. I’ve never seen a revolver jam, and if the round doesn’t fire, you can click again, and another round will appear. With a semi-automatic, clearing a jam is a lot of work: more than I can expect in a danger situation.

I should mention that the folks from ammunition depot, the place I got the gifs, recommends 9mm semi-automatics for personal protection because of the extra “stopping power”. Read their opinion here. I disagree, and here is one last reason: Like many other suppliers, they are out of 9mm cartridges, and have been for months. Perhaps it’s panic buying like with toilet paper, or a manufacturing disruption; 22 lr cartridges are still in stock. Supply problems will likely go away, but it’s another reason to look at the 22.

Robert Buxbaum, December 11, 2020. Some vocabulary words: a bullet is the projectile that comes out the barrel. A round = a cartridge. It’s the thing that you put in the gun before shooting. There are several 22s, all with the same size (diameter) bullet, 0.223″ OD, but with different lengths and power, from short to wmr. Different guns can use different cartridges. Meir Kahane was killed by a 22, as was Bobby Kennedy.

Italian Engineering and the Kennedy assassination.

There are several unbelievable assertions surrounding the Kennedy assassination, leading many to conclude that Oswald could not have killed Kennedy alone. I believe that many of these can be answered once you realize that Oswald used an Italian gun, and not a US gun. Italian engineering differs from our in several respects that derive from the aesthetic traditions of the countries. It’s not that our engineers are better or worse, but our engineers have a different idea of what good engineering is and thus we produce designs that, to an Italian engineer, are big, fat, slow, and ugly. In our eyes Italian designs are light, fast, pretty, low-power, and unreliable. In the movie, Ford vs Ferrari, the American designer, Shelby says that, “If races were beauty contests, the Ferrari would win.” It’s an American, can-do, attitude that rings hollow to an Italian engineer. 

Three outstanding questions regarding the Kennedy assassination include: How did Oswald fire three bullets, reasonably accurately in 5 to 8 seconds. How did he miss the limousine completely on the first, closest shot, then hit Kennedy twice on the next two, after previously missing on a close shot at retired general, Edwin Walker. And how could the second shot have gone through Kennedy’s neck, then through his wrist, and through Connolly twice, emerging nearly pristine. I will try to answer by describing something of the uniquenesses of the gun and bullets, and of Italian engineering, in general. 

Oswald cartridge.

The rifle Oswald used was a Modello 91/38, Carcano (1938 model of a design originally used in 1891) with an extra-long, 20.9″ barrel, bought for only $19.95 including a 4x sight. That’s $12.50 for the gun, the equivalent of $100 in 2020). The gun may have been cheep, but it was a fine Italian weapon: it was small, fast, pretty, manual, and unreliable. The small size allowed Oswald to get the gun into the book depository without arousing suspicion. He claimed his package held curtain rods, and the small, narrow shape of the gun made the claim believable.

The first question, the fast shooting, is answered in part by the fact that loading the 91/38 Carcano rifle takes practice. Three American marksmen who tried to duplicate the shots for the Warren commission didn’t succeed, but they didn’t have the practice with this type of gun that Oswald had. The Carcano rifle used a bolt and clip loading system that had gone out of style in the US before WWI. To put in a new shell, you manually unlock and pull back the bolt. The old casing then flies out, and the spring–clip loads a new shell. You then have to slam the bolt forward and lock it before you can fire again. For someone practiced, loading this way is faster than with a semi-automatic. To someone without practice it is impossibly slow, like driving a stick shift car for the first time. Even with practice, Americans avoid stick shift cars, but Italians prefer them. Some time after the Warren report came out, Howard Donahue, an American with experience on this type of rifle, was able to hit three moving targets at the distance in 4.8 seconds. That’s less than the shortest estimate of the time it took Oswald to hit twice. Penn of Penn and Teller recreates this on TV, and shows here that Kennedy’s head would indeed have moved backward.

Oswald’s magic bullet, shot two.

That Oswald was so accurate is explained, to great extent by the way the sight was mounted and by the unusual bullets. The model 38 Carcano that Oswald bought fired light, hollow, 6.5×52mm cartridges. This is a 6.5 mm diameter bullet, with a 52 mm long casing. The cartridge was adopted by the Italians in 1940, and dropped by 1941. These bullets are uncommonly bullet is unusually long and narrow (6.5 mm = .26 caliber), round-nosed and hollow from the back to nearly the front. In theory a cartridge like this gives for greater alignment with the barrel., and provides a degree of rocket power acceleration after it leaves the muzzle. Bullets like this were developed in the US, then dropped by the late 1800s. The Italians dropped this bullet for a 7.5 mm diameter version in 1941. The 6.5 mm version can go through two or three people without too much damage, and they can behave erratically. The small diameter and fast speed likely explains how Oswald’s second shot went through Kennedy and Connolly twice without dong much. An American bullet would have done a lot more damage.

Because of the light weight and the extra powder, the 6.5 mm hollow bullet travels uncommonly fast, about 700 m/s at the muzzle with some acceleration afterwards, ideally. Extra powder packs into the hollow part by the force of firing, providing, in theory, low recoil, rocket power. Unfortunately these bullets are structurally weak. They can break apart or bend and going off-direction. By comparison the main US rifle of WWII, the M1, was semi-automatic, with bullets that are shorter, heavier, and slower, going about 585 m/s. Some of our bullets had steel cores too to provide a better combination of penetration and “stopping power”. Only Oswald second shot stayed pristine. It could be that his third shot — the one that made Kennedy’s head explode — flattened or bent in flight.

Oswald fragment of third bullet. It’s hollow and seems to have come apart in a way a US bullet would not.

The extra speed of Oswald’s bullets and the alignment of his gun would have given Oswald a great advantage in accuracy. At 100 yards (91 m), test shots with the rifle landed 2 12 to 5 inches high, within a 3-to-5-inch circle. Good accuracy with a sight that was set to high for close shot accuracy. The funky sight, in my opinion , explains how Oswald managed to miss Walker, but explains how he hit Kennedy accurately especially on the last, longest shot, 81 m to Kennedy’s head

Given the unusually speed of the bullets (I will assume 750 m/s) Oswald’s third shot would have taken 0.108 s to reach the target. If the sight were aligned string and if Kennedy were not moving, the bullet would have been expected to fall 2.24″ low at this range, but given the sight alignment we’d expect him to shoot 3-6″ high on a stationary target, and dead on, on the president in his moving vehicle. Kennedy was moving at 5 m/sand Oswald had a 17° downward shot. The result was a dead on hit to the moving president assuming Oswald didn’t “lead the shot”. The peculiarities of the gun and bullets made Oswald more accurate here than he’d been in the army, while causing him to miss Walker completely at close range.

comparison of the actual, second shot, “magic bullet,” left, with four test-shot bullets. Note that one of the test bullets collapsed, two bent, and one exploded. This is not a reliable bullet design.

We now get to the missed, first shot: How did he miss the car completely firing at the closest range. The answer, might have to do with deformation of the bullets. A hollow base bullet can explode, or got dented and fly off to the side. More prosaically, it could be that he hit a tree branch or a light pole. The Warren commission blamed a tree that was in the way, and there was also a light pole that was never examined. For all we know the bullet is in a branch today, or deflected. US bullets would have a greater chance to barrel on through to at least hit the car. This is an aspect of Italian engineering — when things are light, fast, and flexible, unusual things happen that do not expect to happen with slow, ugly, US products. It’s a price of excellence, Italian style.

Another question appears: Why wasn’t Oswald stopped when the FBI knew he’d threatened Kennedy, and was suspected of shooting at Walker. The simple answer, I think, is that the FBI was slow, and plodding. Beyond this, neither the FBI nor the CIA seem to have worried much about Kennedy’s safety. Even if Kennedy had used the bubble top, Oswald would likely have killed him. Kennedy didn’t care much for the FBI and didn’t trust Texas. Kennedy had a long-running spat with the FBI involving his involvement with organized crime, and perhaps running back to the days when Kennedy’s father was a bootlegger. His relation with the CIA was similar.

The Mateba, Italian semi-automatic revolver, $3000, available only in 357 Magnum and 44 magnum.

I should mention that the engineering styles and attitudes of a country far outlast the particular engineer.We still make big, fat, slow, ugly cars — that are durable and reasonably priced. Germans still overbuild, and Italian cars and guns are as they ever were: beautiful, fast, expensive, and unreliable. The fastest production car is Italian, a Bugatti with a top speed of 245 mph; the fastest rollercoaster is at Ferrari gardens, 149 mph, and in terms of guns, let me suggest you look at the Mateba, left, a $3000 beautiful super fast semi-automatic revolver (really), produced in Italy, and available in 357 magnum and .44 magnum only . It’s a magnificent piece of Italian engineering beautiful, accurate, powerful, and my guess is it’s unreliable as all get out. Our, US pistols typically cost 1/5 to 1/10 as much. A country’s cars, planes, and guns represent the country’s aesthetics. The aesthetics of a county changes only slowly, and I think the world is better off because of it

Robert Buxbaum, February 14, 2020. One of my favorite courses in engineering school, Cooper Union, was in Engineering Aesthetics and design.

How Theodore Roosevelt survived being shot

Two more pictures of Theodore Roosevelt. The first is an x-ray showing the bullet he received as he entered a hall to give a 90 minute speech in 1912. How he survived the shooting: he did nothing. He left the bullet stay where it was for the rest of his life. It seems that both McKinley and Garfield had died from infection of their shooting wounds after doctors poked around trying to extract the bullet. It’s quite possible that Lincoln died the same way (Lincoln’s doctor was the one who killed Garfield by poking around this way).X-ray of Teddy Roosevelt showing the bullet where he let it lie.

X-ray of Teddy Roosevelt showing the bullet where he let it lie. The stripes look like lead paint, used to mark the spot. 

Roosevelt knew from hunting that a shot animal could last for years with the bullet still inside him. Roosevelt (and his doctors) knew, or suspected, that his bullet had stopped in a place where it would be harmless unless someone tried to extract it.

T. Roosevelt with Rhino, 1909.

T. Roosevelt with Rhino, 1909. Teddy would be shot 3 years later, in 1912.

In the speech, Roosevelt said, “it takes more than that to stop a Bull Moose.” He ought to know. For more T. Roosevelt pictures, click here.