Re: Brass sizing
Scootball,
If you're loading for a gas gun then ALWAYS full-length size. Every time, without exception, ever, for any reason. You'll also need to extend that shoulder bump back to .003"-.004", not the .001" or .002" figure more commonly used for bolt guns. Gas guns are just different animals, and require a very different approach to how the ammunition they're fed is handloaded. Totally different ball game here.
I would very strongly suggest that you simply get another batch of brass, and then <span style="text-decoration: underline">never</span> mix the ammo (or fired cases) between gas gun and bolt gun. If you absolutely must, and cannot avoid using the ammo in both, then load it to function in the gas gun. In other words, JUST load for the gas gun. That ammo will work just fine in a bolt gun. YOu load for the bolt gun, and you'll have problems with that ammo when it's used in the gas gun, guaranteed.