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A friend of mine and I got in an interesting discussion the other day. We both load for .45 ACP. I use a bit of a faster powder than he does, but a smaller charge weight. Both loads are with 185gr XTP bullets, and in the same velocity range. He uses a slower powder with but with a larger charge wieght. Now, I know for the same powder, all things being equal, the "felt" recoil increases with the charge wieght. Partially because of the higher energy, but also because there is more "stuff" moving with a higher charge weight. But with a slower powder, as compared to a faster powder, wouldn't the initial "recoil pulse" be less even if it takes more of the slower powder? With the two .45 loads, we can't really see the difference between them. But I suspect that the faster powder gives more of a quick snap while the slower powder more of a longer push. Just wondering what the real answer is, as we couldn't figure it out over a few beers. | ||
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It all happens in a couple microseconds, I doubt one could feel any difference in how the powder burns as long as the two loads have the same velocity & bullet wgt. The different pressure of the loads because of the different powders might cause the recoil spring in the gun to compress slower or faster giving a feeling of snappiness. Maybe someone else knows for sure.... ------------------------------------ The trouble with the Internet is that it's replacing masturbation as a leisure activity. ~Patrick Murray "Why shouldn`t truth be stranger then fiction? Fiction after all has to make sense." (Samual Clemens) "Saepe errans, numquam dubitans --Frequently in error, never in doubt". | |||
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well again are the weapons the same types ? because weight does play a role in recoil. For EXP a glock 21 will recoil more that say a full size 1911. You Didnt say about the barrel lenght, 185 Gr out of a Colt Officers Model 1911 Will recoll more than say a Combat Commander  | |||
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The charge weights in a .45acp would be too small to notice, plus the semiauto operation changes felt recoil as well. There is a diff. in larger volumn rifle cases, maybe even 44mag & 45colt. LIFE IS NOT A SPECTATOR'S SPORT! | |||
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Hey NEJack, I'd "suggest" it depends on how many cartridges you are talking about shooting over the span of a day. And how much actual cumulative time you have with the firearm over a month. If you know any Skeet and Trap Shooters that may spend an entire day at the Range breaking Clay Pigeons, a lot of the folks gravitate toward the slower Powders. Same for some of the Competition Pistol Shooters. The Recoil Impulse is indeed different from the Fast and Slow Powder Loads, but it would be very difficult to notice unless you shot a whole lot - on a regular basis. When using the 45ACP, I prefer a Blue Dot Load that uses right at twice the amount of WW-231 or HP-38 to achieve approximately the same Velocity with the same weight bullet. The Blue Dot Load has a different Recoil Impulse which allows me to re-acquire the Target a bit quicker. If I went out today and tried to distinguish the difference between the two Loads, I might not be able to do it, due to a severe lack of practice. But I'm not real sure that I couldn't notice the difference. In my situation, it has to do with where the Pistol is trying to go during Recoil and how well I'm able to keep it under control. The Fast Powder seems to "twist" the muzzle a bit higher to the right for me and quickly enough that my grip needs to be tighter than with the Slower Powder. --- It would be easy enough for everyone to load up a box with one of the Fast Powders and a box with one of the Slower Powders to see for themselves "if" they can detect a difference. | |||
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Bullseye in 25 acp can get half the powder burned in 150 micro seconds. Bottle necked rifle cartridges with single base stick powder may get the first half of the powder burned in 600 micro seconds. | |||
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Now that is interesting. He has a Tarus, and I have a Kimber 1911, but it was more of a thought exercise than anything. Thanks again! | |||
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The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Guns, Politics, Gunsmithing & Reloading Reloading Powder burn rates, charges, and recoil
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