Re: Load development/fireforming
There are probably more than a couple schools of thought.
You might be able to narrow your bullet selection while fireforming?
On the other hand, I have mostly used surplus bullets and odd lots of powder that I happen to have on hand; to get it over with, without keeping score.
The best solution is to get a loaner rifle with a junk barrel from your gunsmith, chambered using the same reamer as used on your rifle. This way, I have been able to shoot full house loads, 100 per hour, and have the case perfectly formed in one firing. Bang, bang, bang, and your cases are ready for serious evaluations, and no wasted rounds through your new barrel.
Good hunting. LB