Thread: Fireform brass for subsonics .308?

Originally Posted by Cordite

I assume you use a Lee Loader kit which just neck sizes?

Do you have more than one .308, which may have slightly different chambers? If not, then just neck sizing is fine.

If chambers are similar (more likely between .308s as they headspace on the shoulders) you may still get away with just neck sizing and using your reloads in either gun.

A quick test if shoulders need a bump from a full length sizing setup is just chambering an empty neck-sized case you previously fired in that rifle. If the bolt closes easily on it (a slight, buttery, final resistance is OK), then it's fine to reload and it's now perfectly headspaced.

I use a lee Collet Neck Sizing die.

I was going to us fireformed brass from supersonic rounds. I've loaded up some full resized so will see how I get on. Cheers Folks