Originally Posted by
Kerrdog
I was thinking that increased pressure would cause the bullet to strike high. Why did they strike low?
The Barnes rep said NOT to crimp. I only did so because the bullets were loose after FL sizing. The second batch I neck sized AFTER full length sizing, and that tightened them up. No crimping involved. My target OA length was 3.24", as recommended by Barnes. How do I determine "off the lands"?
Thanks, All.
By crimping, the pressure most likely did increase but the velocity most likely dropped effecting the trajectory therefore changing the POI. No reason you should have to crimp in this caliber, just make sure your sizing the case properly.
pawildman has given you two good ways to measure however I wouldn't start moving the bullet around until you settle on a load that you are satisfied with and then adjust your seating depth to tighten up the group...if it will help. But knowing where your at now will help you determine how much your moving the bullet later.