Just curious if anyone else has noticed DTACs liked to be run jammed. After determining charge weight, I ran a test from .030 off to .015 in, defining the "0" as the point where the 5 land marks can no longer be seen on the bullet, but .001 longer and they can.
The loads jumping were all around 3/4 moa, but shrunk to .3 moa at 0 and held there until .015 jammed, where it opened up to over half moa.
ES was in the low teens with single digit SD for the jammed bullets, and not as consistent jumped, so in this barrel, jammed seems to be the ticket for now.
Continuing further, I got a new batch of RL-25 in, and it turned out to be faster. I couldn't get the load to shoot better than 3/4 moa, old powder or new, so I finally remeasured and found that my throat had grown .0075 and what I thought was kissing the lands was actually jumping.
I am curious if anyone else has found similar results with DTACs?
-Bob
The loads jumping were all around 3/4 moa, but shrunk to .3 moa at 0 and held there until .015 jammed, where it opened up to over half moa.
ES was in the low teens with single digit SD for the jammed bullets, and not as consistent jumped, so in this barrel, jammed seems to be the ticket for now.
Continuing further, I got a new batch of RL-25 in, and it turned out to be faster. I couldn't get the load to shoot better than 3/4 moa, old powder or new, so I finally remeasured and found that my throat had grown .0075 and what I thought was kissing the lands was actually jumping.
I am curious if anyone else has found similar results with DTACs?
-Bob