3Dflyer Posted October 4, 2019 Share Posted October 4, 2019 How will using magnum primers vs standard small pistol primers affect the exact same load? Example is magnums used in place of regular Winchester primers the same projectiles and same powder drop?Winchester Is power factor affected? Felt recoil? Link to comment Share on other sites More sharing options...
Rnlinebacker Posted October 4, 2019 Share Posted October 4, 2019 How will using magnum primers vs standard small pistol primers affect the exact same load? Example is magnums used in place of regular Winchester primers the same projectiles and same powder drop?Winchester Is power factor affected? Felt recoil?magnum primers don't burn hotter they just burn longer. Assuming you're using same brand of primers. Rifle primers are def hotter in comparison and will give pf bump Sent from my SM-G973U using Tapatalk Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted October 4, 2019 Share Posted October 4, 2019 I've used magnum primers interchangeably with regular primers, and didn't see any significant difference. Possibly a small bit, but not very much. Link to comment Share on other sites More sharing options...
Aircooled6racer Posted October 4, 2019 Share Posted October 4, 2019 Hello: I have tested Winchester small pistol, small rifle and small pistol magnum primers. The magnum primers gave me the fastest load with the same powder drop. It was between 15-20fps more than small rifle primers. Felt recoil was the same. The cowboy shooters use small pistol magnum primers for their low power loads. I use small rifle primers for my major 9mm loads and small pistol primers for my 9mm pistols and PCC. Federal small pistol for my light trigger pull Glock 34 and revolvers. Thanks, Eric Link to comment Share on other sites More sharing options...
racer-x Posted October 4, 2019 Share Posted October 4, 2019 Link to comment Share on other sites More sharing options...
Postal Bob Posted October 6, 2019 Share Posted October 6, 2019 Never noticed a difference in power, in the target loads we normally use. What I did find out is that magnum primers are a harder material than standard, For example, in my 38/57 revolver, with a very light hammer spring. In my 38 special loads with standard Win primers, I never had a primer fail to go off. But the same load using Win magnum primers, I'll get a light strike in maybe 1 out of 10 rounds. Something to keep in mind if using a revolver or a striker fired gun with a very low hammer/striker spring. Link to comment Share on other sites More sharing options...
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