Thread: .223 off the shelf ammo

Measure your twist rate, super easy to do with a rod, brush, black marker pen and ruler. That will let you know how heavy a bullet it can take. Otherwise start at 55 grains and keep going up till they dont get on the target or if they do its sideways.
If you run a supressor its best to take it off after say 65 grains to avoid a nasty suprise.