I, for one, think this is a very interesting execise. A well documented test to validate or debunk the concern about +P's in the M12 series guns by a "regular guy".

Based on my own limited M12 experience, I bet it survives just fine, although I've been hesitant to advise +P usage in these guns.

Keep us informed, and thanks for doing thins test and sharing it with us!

Bill

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Bill