![]() ![]() There's certainly no reason to try another powder of near the same burn rate or even faster burning. ![]() I hope this provides at least a bit of information to those readers with similar concerns.The best powder for the job depends on barrel length and the type of load you're after. However, it did not seem that the pressure was excessive in any of the loads. Especially since the Federal primers are quite soft and the CCI primers are much harder. The pressure issue is difficult to judge by just looking at the fired primers resulting from only one type of relatively slow burning powder. One, see if there was much of a velocity difference, and second (and more importantly) try to determine if the magnum primers caused a noticeable increase in pressure. There were two goals in conducting this test. I doubt the age of the primers would be a factor if they were stored correctly, but think it is worth mentioning. A similar test with a wide variety of powders would be beneficial. Furthermore, one type of powder was used. Judging from the style of box in which the primers are packaged, and the price stickers, I suspect the primers are 12 to 17 years old. As I mentioned in the original Post I bought them “out of desperation” at an estate auction. The test velocity readings were from a 5 shot average and would benefit from a much larger average. ![]() There are several things to consider here. The PM9 was included to see how much difference the 3 inch barrel would make.ĥ.7 grains HS-6 S&W Regular Primer 1017fps Magnum Primer 1023fpsĦ.2 grains HS-6 S&W Regular Primer 1108fps Magnum Primer 1119fpsĦ.4 grains HS-6 S&W Regular Primer 1177fps Magnum Primer 1131fps Pistols used were a S&W Model 639 and KAHR PM9. Velocity measurements from a “Shooting Chrony Alpha” placed approx 5 ft from muzzle. Bullets were Missouri Bullet Company 9MM. The test consisted of three different amounts of HS-6, Starline +P brass, Federal Small Pistol Regular and CCI Small Pistol Magnum primers. This is a follow-up to the Post I entered on June 19 “Magnum Primers in 9mm” ![]() Input from others concerning the above discussion will be greatly appreciated. The three pistols I commonly shoot in 9mm are S&W Model 39-2, S&W Model 639 and KAHR PM-9. The primers I normally use are Federal 100 which seem to be of fairly soft metal in that they can flatten somewhat when in fact the pressure does not seem excessive.Īlthough I have experimented with many combinations in 9mm from “barely able to cycle the slide” to “oh my, too much +P” my main goal is the seemingly never-ending search for a very accurate load with good velocity which does not overly stress the pistol. It seems that using a fairly slow powder with good shell filling capacity such as HS-6 or possibly Blue Dot and working up slowly would be a good way to go. Brass is Starline 9mm+P and powders vary from 231, HS-6, Titegroup, Universal Clays, Unique. The bullet I have been using lately for weekend target shooting/load development is 125 gr rn BH18. Now I am faced with the challenge of figuring out how to safely use them in my various 9x19 handguns.Īs most serious reloaders know, the 9mm cartridge is sensitive to change and using magnum primers with the wrong combination powder, bullet, OAL etc, could be “not a good thing”. Out of desperation, I recently purchased a large amount of Small Pistol Magnum primers at an estate auction. As in most of the country, primers, powder and brass are in short supply here in Alaska, especially primers. ![]()
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