Thread: Bullet seating depth

If ya havent got an OAL gauge. Get your cleaning rod and fit a jag to it. Ensure your rifle is clear and close the bolt, cocking the rifle. (if rifle not cocked you may get a false reading off the firing pin) Carefully run your rod down from the muzzle until it contacts the the bolt face. Mark a line you can see and measure from around your cleaning rod at the muzzle.
Remove the bolt and place your projectile of choice into the chamber and give it a bit of pressure until it is seated firm enough into the lands so it does not fall out. Not too firm. Gently run your rod from the muzzle until it contacts the projectile and scribe another line around the rod. Measure between the lines on your cleaning rod and you will have a good indication on your OAL for said projectile, or at least somewhere to start from.
Lead tip projectiles can vary in length way more than hollows and polymer tip ones. Just be aware of that when finalising an OAL.