I saw something about this the other day. Can you explain the unsupported chamber deal? I have a gen 4 glock 19 that I will be using all of this ammo for.
You shouldn't have any issues with your generation stock guns. However if you pick up an aftermarket match grade barrel the chambers are a bit tighter and could give you issues. 9mm has a slight taper and even full length resizing dies stop at a point and fail to truly full length re-size. Ammo fired in a loosey goosey (Glock) chamber, resized, may still be a bit wide at the base.
When firing reloads in these tighter chambers you may experience tolerance issues that don't occur in factory stock barrels but crop up with tighter chamber tolerances.
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