Correct charges for 9mm

[Vol46]

BDS &Voi46,
With these recipes of yours what is your OAL.? Mine is 1.100 . I am using 115gr plated from
Rocky Mountain Reloaders.

I use a COL of 1.130", but that is with a different bullet. The Berry's 115 may or may not have the same bullet profile as your Rocky Mountain 115s. Look up "plunk test" using the search feature in this forum, or Google it. That will give you the correct length for your barrel & your bullet.

 

[LiveLife]

With these recipes of yours what is your OAL.? Mine is 1.100. I am using 115gr plated from Rocky Mountain Reloaders.

The Glock 26 and Ruger SR9c you are using will likely accommodate OAL to SAAMI max of 1.169" depending on the nose profile of the plated bullet.

But with 115 gr bullet that has shorter bullet base than 124/125 gr bullet, using longer than 1.135" will result in less bullet base seated in the case neck and especially with mixed range brass with unknown reload history, you may experience less consistent initial chamber pressure build up that may decrease accuracy.

Many claim heavier 9mm 124/125 gr bullets are more accurate than 115 gr bullets. I think the longer bullet base that gets seated deeper in the case neck helps with more consistent neck tension/initial chamber pressure build. Perhaps these reasons are why Winchester and Berry's MFG produce 115 gr bullets with hollow base that extends the length of bullet base.