Ask the Community

No gun selected. but it is most likely a issue with your priming system. Is the primer/cap firing is the primer/cap system clean. other that that I would call the manufacture for advice

Joseph, make sure you try some different magazines with the same ammo. 55gr should feed fine so I would also try some Magpul M3 Magazines as well : https://www.budsgunshop.com/catalog/product_info.php/products_id/411553386/magpul+mag557-blk+ar-15+pmag+gen+m3+30rd+223rem%2f556nato+black

sorry I was thinking about a blackpowder rifle and a Fail to fire with 55 grains of powder. I would try a different brand of ammo and different mags as some rifles just don't like some bullets