Newbie; rcbs mic question

[30Cal]

I wouldn't have suggested making distinct, sorted piles of the "other" brass - just a single undifferentiated pile. Case volume should matter for precision rounds ultimately, but for blasting, I agree it really won't. No, I haven't personally tested how much it matters - I don't shoot well enough.

I do find it useful to have "bad brass" for experiments when calibrating the dwell time for my annealer or checking out the trimmer setup, and so on. This is where keeping a separate small pile (undifferentiated, as I said) seems like a good use, but of course to each his own.

I keep 10 pieces of the worst I can find out of my batch of 2000 and I use it for load development. When my load shoots well with the crappiest brass, I don't have to worry.

[gau17]

Great idea! Presumably they'll get there after a second firing, but we'll see after I have a chance to try this. I am worried that I won't know for sure whether my AR is fully in battery - is there a sure-fire way to check (other than to find out that it isn't after I touch a round off)?

Warning **** I do not recommended for a gas gun! You should size your brass to SAAMI spec when loading for an AR.