Garmil Posted February 28, 2017 Share Posted February 28, 2017 Does the primer cup hardness usually correlate with showing pressure signs? I've always understood cci,Winchester,federal as hardest to softest. But in load testing cci flatten before Winchester for me. Link to comment Share on other sites More sharing options...
superdude Posted February 28, 2017 Share Posted February 28, 2017 4 hours ago, js1130146 said: Hmm. Interesting. I guess I need to educate myself a little more thoroughly on this topic. Do you know if any good resources available for more reading about burn rate and things of that nature? Check the "gunpowder" sections of your loading manuals. Search for and compare burn rate charts. Link to comment Share on other sites More sharing options...
superdude Posted February 28, 2017 Share Posted February 28, 2017 4 hours ago, Garmil said: Does the primer cup hardness usually correlate with showing pressure signs? I've always understood cci,Winchester,federal as hardest to softest. But in load testing cci flatten before Winchester for me. I've found it to vary depending on powder, cartridge (caliber). It can be hard to predict. One example with one powder and one bullet is shown here: http://38super.net/Pages/Primers.html Link to comment Share on other sites More sharing options...
dons Posted March 2, 2017 Share Posted March 2, 2017 A longer than stock firing pin in a 1911/2011 can help with that cratering. Did for me. Link to comment Share on other sites More sharing options...
3djedi Posted March 2, 2017 Author Share Posted March 2, 2017 A longer than stock firing pin in a 1911/2011 can help with that cratering. Did for me.The CK comes with an extended firing pin. Problem is you can't load very long in the gun.Sent from my SAMSUNG-SM-G935A using Tapatalk Link to comment Share on other sites More sharing options...
Hunter1998 Posted March 2, 2017 Share Posted March 2, 2017 What projectiles are you using in your load data? Link to comment Share on other sites More sharing options...
Magictalent Posted March 4, 2017 Share Posted March 4, 2017 On 27/02/2017 at 5:07 PM, Trent1k1 said: I like CCI SPP. Don't have any problems with those and i run MG 115 JPHs, over 7.5 grains of CFE Pistol. Good luck! Hi I am planning to load 124 gn plated with CFE. Can you share more info with CFE powder? I load CFE with 45 ACP and 9mm before. Both have unburn powder. Does it happen with 38sc? Link to comment Share on other sites More sharing options...
3djedi Posted March 4, 2017 Author Share Posted March 4, 2017 What projectiles are you using in your load data? 125g blue bulletsSent from my SAMSUNG-SM-G935A using Tapatalk Link to comment Share on other sites More sharing options...
Trent1k1 Posted March 8, 2017 Share Posted March 8, 2017 On Friday, March 03, 2017 at 10:37 PM, Magictalent said: 124 grain Montana Gold JHP with a 1.165 OAL I'm about 7.0 grains of CFE for a 170 PF Link to comment Share on other sites More sharing options...
Magictalent Posted March 8, 2017 Share Posted March 8, 2017 13 hours ago, Trent1k1 said: 124 grain Montana Gold JHP with a 1.165 OAL I'm about 7.0 grains of CFE for a 170 PF Thanks Trent. Link to comment Share on other sites More sharing options...
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