Thanks John, your thoughts sum up what I have suspected. That and the fact that they seem to think out of the box a bit like the recoil lug system - one would think "that can't work" but it surely seems to work very well, I suspect that it may have been a cost-saving step initially but it surely works.

drover

223 Rem, my favorite cartridge - you can't argue with truckloads of dead PD's and gophers.

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