Hornady Crimp-On Gas Check 6.5mm 7040H 7mm Gas Checks 7060. 5mm 7040H is a patented crimp-on gas check that is made of corrosion-resistant copper for long life. The crimp-on type works by expanding the bullet as it passes through the gas check -...
Hornady Crimp-On Gas Check 6.5mm 7040H 7mm Gas Checks 7060. 5mm 7040H is a patented crimp-on gas check that is made of corrosion-resistant copper for long life. The crimp-on type works by expanding the bullet as it passes through the gas check -...