how much titegroup to fireform cases?

[22to45]

anyone got a guess? I am going to use cream of wheat and plug the cases with paper... I am looking to make 6.5 AI cases. I have a pound of tight group and thought it would probably work. I googled it, a tenth of a case full seems to be about right...

 

[Ganderite]

I used 4350 and match bullets. Accuracy was fabulous.

 

[yodave]

I agree with ganderite, load up your favorite load and shoot away, if your chamber wasn't set up for a jam fit on factory cases then jam the bullets 30 thou to ensure the case head sits firm on the boltface

 

[LUTNIT]

I've used 10-15gr of most any pistol or shotgun powder to fireform cases for cartridge conversions where simply seating a bullet to a jam fit (as mentioned above) wasn't an option. Most recently for me was converting 7.62x54R to 8x58RD (the necks come out short but they work). I tried just expanding the necks and seating 8mm bullets but it kept causing terrible gas leakage blasting me in the face at the black powder pressures my rolling block was designed for. I fire formed with cream of wheat and 12gr of Reddot, capped off with white glue in the neck, and they worked great after that.

For everything else I just load and shoot as normal; obviously it shouldn't be part of your load development as the cases wont be consistent to later loads and I do sometimes use cheaper bullets (bulk FMJ) for this. In the case of 6.5mm, FMJ aren't easy to find so maybe a cheap hunting bullet if you don't want to use up match bullets.

 

[Ganderite]

I use my 4350 fireforming rounds in the short range F class matches (300 to 600). They made feel God-like. The bullets went exactly where I aimed. After I started to reload the formed brass with a bigger does of slower powder, the groups were not as good. I am still looking for the high velocity God-like load.

Not only do I fire form with match bullets, but I do it in matches because the results are so good.

I have fireformed other rifle calibers using cream of Wheat. I used about 10 gr of power and aimed the rounds at the concrete wall in my shop. The mouths were not uniform. maybe not enough powder? (or too much?)