A very good discussion. I am a big 10 mm fan so I read the FBI report with a lot of interest.
A couple of questions that I have:
- Is there a newer report out that is available to the public?
- The silvertips at that time were way behind the hydro-shoks and Gold Dots design wise. Have they been upgraded at all through the years to get more cosistant expansion or are they still way behind?
Good questions. I have to say that other than the books I have which were provided to me as a chief instructor for a state academy when I asked, they are most likely not available to the public. They are not routinely sent out to LE Departments either. That would be cost prohibitive simply because they aren't small and light and cost even at media rate postage would be high.
Hydrashoks were specifically designed for the FBI and the 10mm, originally, as a result of the famous Miami shootout, or so the story goes. They were in testing the second year when I studied at the FBI Ballistics Lab for a week learning how to do the tests. I don't have any results on the Gold Dot at all because their bonded gold dot bullet wasn't out till much later when I already had transferred back to the field. However after testing by our department, we moved from hydrashok to gold dot exclusively in handguns. I have found in my own accuracy testing that Hydrashok tends to vary greatly by caliber. I've had good results with 9mm and .38 special but in .45 and .40 found it lacking. Whereas with Gold Dot it seems to be universally good regardless of caliber although bullet weight made a big difference in .40 cal and in Short Barrel versions in a 2" S&W I shot the smallest groups I've ever seen from one of those guns. The .38 doesn't translate well to .357 however.
I have to guess that silvertips haven't been upgraded by Olin at all. The reason I make that guess is because Winchester like ATAK (Federal and Speer) and Remington deal through specific LE distributors for their LE line which is RANGER and comes in 50 rd LE boxes. Silvertips still come in 50 rd boxes and are usually sold through commercial distributors along with Winchester White Box ammo which is their bargain priced offshore made promotional type ammo. So I think that OLIN feels that silvertips still have marketing potential and good sales but that they aren't up to LE standards. They are not a +P round at all. Penetration is fairly poor in fact in the 20 yard windshield glass test, they failed to penetrate at all and none of the test rounds damaged the glass at 20 yards. And at point blank range 3 didn't penetrate auto glass at all. That of course is .380 just for an example. The 115 grain 9mm did better but not great.
The most recent book I have indicates that the FBI was heavily concentrating on 40 calibers, which of course they have gone to as most other LE departments have over the last few years. The .357 SIG is a great round and I'm not sure the .40 is as good as it is touted to be. I have finally found a couple of versions that do well in my pistols but I really had to work to find them. I am sure, however that both and the 9mm are superior to the .38 spec 158 grain lubaloy lead that we carried on duty when I started with the state in 1972. I saw the actual results of a Trooper who was shot three times in the back of the head with his own gun on scene in 1973. They didn't even make a mess but they did kill him at point blank range. After that I started pulling bullets and reloading the powder charge on my issued ammo with one of my own choosing. A practice that would have got me a very stiff suspension had anyone ever known. The range officer always suspected when I would fire my duty rounds at qualification but he never said anything. I think there were lots of cops all over the country doing "hot loads" at the time. It was even the subject of a POLICE STORY Tv episode, which made me laugh.
I suspect that Winchester Black Talon was the upgrade for silvertips and while lots of people think that is the pinnacle of ammo technology, others don't and Winchester no longer even makes it. But that's just my suspicion. I have no hard facts to prove it.