CTR 260 Rem 143 ELDx w/ H4350 w/ clean chamber/throat area (for science)

Same rifle and load 100 rounds later, same range trip, w/ no adjustments to scope.

Wanted to see the affect on POI and group sizes as the rifle fouls up w/ statistically relevant group sizes. It took about 40-50 rounds for POI to migrate, but about 80-100 rounds for accuracy to tighten up further.
Here’s a group of shots 61-80. Notice POI has moved from shots 1-20, but the group is a little larger than typical from this barrel/load combo


Same rifle and load 100 rounds later, same range trip, w/ no adjustments to scope.

Wanted to see the affect on POI and group sizes as the rifle fouls up w/ statistically relevant group sizes. It took about 40-50 rounds for POI to migrate, but about 80-100 rounds for accuracy to tighten up further.
Here’s a group of shots 61-80. Notice POI has moved from shots 1-20, but the group is a little larger than typical from this barrel/load combo
