powder for fireforming

[greggrissom]

Was wanting to fireform some brass and was wondering what powders everyone else was using. I have some Hodgen Clays powder and wanting to form some 7-08 brass.what are others using and how much?

 

[Victor N TN]

What caliber brass are you using and what do you want to turn it into? Is this a tight neck conversion?

 

[greggrissom]

The brass is excessively over sized 260 lapua brass that I necked up to 7mm. I try to bump my shoulder back .003" from the fired brass. Chamber fired brass measures 1.624" abd I'm trying to bump it back to 1.621". Sometimes the shoulder will get bumped back way too far creating excessive headspace. Thought I would try the Cream of Wheat method and push it back out.

 

[ptaylortx]

I use unique when COW forming 6mm Ackley. It takes about 12 gr to get a good shoulder.

 

[Letzgoracin301]

Deleted whoops.

 

[gewehr]

I have used clays with the CoW method in a 280 ackley, just start really low to find a charge.

 

[dauntedfuture]

I would just neck it up and shoot it. I would just check the shoulder angles, I think .260 is just .308 necked down, afterall it used to be 6.5-08 before it became the .260. 7-08 is just .308 necked down .62mm afterall.