6 Dasher fire forming load

[Geronimo Jim]

Using Varget and 105 - 108's usually use 30 grains. But I have some new
hydra formed brass and wondered what you guys use. Thanks Jim

 

[Terry O]

With hydo formed brass, anneal after hydo forming, 31.5 gr of Varget. Gives around 2860 fps and sharp shoulders. Accuracy is better than good.

 

[Keith Glasscock]

I made the mistake of running full-power loads after hydroforming. It seems like the theory of the case head work hardening has some merit.

 

[Steve Ladino]

Using Varget and 105 - 108's usually use 30 grains. But I have some new
hydra formed brass and wondered what you guys use. Thanks Jim

If the brass alloy is the same why not use what you have used before ?

 

[Geronimo Jim]

Steve....because before that brass was NOT hydra formed.

And....where were you last Tuesday?

 

[shoot4fun]

Using Varget and 105 - 108's usually use 30 grains. But I have some new
hydra formed brass and wondered what you guys use. Thanks Jim

Only Hydra-Formed Dasher brass I use is from DJ's Brass. All his brass is done right. When you receive it every piece chambers silky smooth and will properly headspace. I just load my usual 32.7 Varget and shoot.

 

[cwall64]

I made the mistake of running full-power loads after hydroforming. It seems like the theory of the case head work hardening has some merit.

What happened? What kind of load?

 

[Keith Glasscock]

Primer pockets on that brass loosened prematurely when compared to brass that was fired with a mild load on the first firing.

Mine is just one anecdotal data point. YMMV