Originally Posted by DaveB
I did try adjusting the sizing collar down on my MEC 600 and it not did make a difference. I just need to ultimately switch over to the Cheddite hulls and for the time being figure out a way to remove the .002” on the AA’s.


If you start filing the rims on those cases, do you not run the risk of compromising the case and blowing a hole? That's folded steel or brass, and if the former, you will also encourage corrosion.

It's a no brainer to hone the rim recess. It just isn't worth the trouble or risk of rupturing a case. But they are your eyeballs (hopefully safely behind glasses).





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BrentD, (Professor - just for Stan)

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