Thread: Fire forming 270 to 280ai

Originally Posted by Trav-6mmrem

Evening fellas

Fire forming is a new exercise to me so I'm after abit of advice before I rip into it.

Rifle is a new kimber with control feed action

I've picked up 100 new winchester 270 brass to turn into 280ai.
I have 5 pound of old rl22 and some cheap 7mm 140gr Speers to do the fire forming with.

Do I just lube the inside neck of the 270 case, run it through the 280ai die, fill the case with a medium load of rl22 and projectile then go shoot it?

Will I have head space issues and do I need to seat the projectiles to jam the lands to counter this?

Have I missed anything?

Save primers, powder, bullets and barrel life by getting a hydraulic form die: https://www.whiddengunworks.com/hydraulic-form-die/

or (scroll down) https://www.hornady.com/reloading/dies/custom-dies#!/