dasher with 95 gr bullets

[hoene72]

Hi Everyone
Just got my 6 dasher together been fire forming brass. Trying different powder and bullet combinations. So far h4895and the 95 bergers have shoot the best. Was wondering roughly what max load might be with this combination? Been using 30.5 grains of h4895 to fireform brass.
Thanks for the help

 

[mikecr]

Nobody can know YOUR max load, but there is a sound way for you to find it.
Prior to resizing your fired(under moderate pressures) brass, measure diameter .2" in front of the casehead(web).
You'll see ~.4700" very consistantly. This is likely fully fire-formed.
Now, as you go up in powder again with this brass, measure each extracted case again. When you see .0005 to .001 (if that's the best you can measure) growth, it means you are challenging brass elasticity at the webs, beginning with that charge.
If you want your brass to last without ridiculous continual sizing, one charge increment lower is your MAX.
This will be ~55-58kpsi, and probably before but very near other pressure signs.
Other signs can happen sooner, but that does not make them a MAX load. It just means your headspace is in excess, or your firing pin is screwy, etc.

 

[alf]

I run Varget in a 22" Rock 8 twist with the 95 VLD's at 3100