spent the last couple years looking over all the different AR-15 cartridges that have cropped up... wow! i would like to try all of them, but i cant...
been working on this one, the .40 carbine... i have read many posts over several forums if this cartridge exists, it may, but nobody has mentioned it...is any body out there working on this one?
what would be the advantages of a cartridge like this, designed for 155 to 200 bigger bore pills that truly double stack in standard ar mags....
would you be interested in developing this one as an online popular project, can we do it?...
below -- .450 bushmaster , 7.62x39 , proposed .40 carbine