45 GAP Ammunition was Primarily made for Glock and "Hole" really means "Glock Automated Pistol". Engineer Ernest Durham created the 45 Hole round as being a cartridge that could be as highly effective as 45 ACP but would have a stronger circumstance head to decrease the opportunity that the case's https://tacticalrounds.com/product-category/best-rifle-ammo/30-06-springfield-ammo/