This first photo is from a different rifle with very similar specs just to establish a baseline of my load/shooting capability. From left to right is 40.0, 40.1, and 40.2. As you can see 40.2 is the clear winner here.
Now here is are the groups from the second rifle. First thing I’m noticing is there seems to be a lot of single shots that don’t group (circled in red). But also the tightest grouping I’m seeing is 0.69 - 0.79. These are all custom parts from custom manufacturers so sub half moa groups should be obtainable like in the first photo.
This target was from today after I identified a powder charge I thought the barrel liked (39.8).
It liked 41.3 but as you can see there was another inconsistent shot. So my question is should I:
A) stick with 41.3 and play with seating depth
B) change bullet grain and re-do powder charges or;
C) reload the charges and go shoot the same test.
Just looking for a little help on taming this 18” barrel.
Now here is are the groups from the second rifle. First thing I’m noticing is there seems to be a lot of single shots that don’t group (circled in red). But also the tightest grouping I’m seeing is 0.69 - 0.79. These are all custom parts from custom manufacturers so sub half moa groups should be obtainable like in the first photo.
This target was from today after I identified a powder charge I thought the barrel liked (39.8).
It liked 41.3 but as you can see there was another inconsistent shot. So my question is should I:
A) stick with 41.3 and play with seating depth
B) change bullet grain and re-do powder charges or;
C) reload the charges and go shoot the same test.
Just looking for a little help on taming this 18” barrel.
