salmonchaser
Handloader
- Dec 13, 2013
- 4,904
- 4,660
Been playing with my 300 HH #1 hoping to get consistent 1/2 moa with 180 accubonds. I got there with 68.5 gr of RL 19 but velocity was only 2880, hoping for a little more.
The first group, 69 gr. Rl 19 came in at 2914 for five shots. Extreme spread of 11.6, std dev of 4. Also running the new Garmin chronograph. First three shots went into about 1/2 moa. Did the math and put two shots dead center on the 300 yard gong. Garmin appears to be pretty accurate!
Next up was 69.5 grains of Rl 19, came in at 2928. Extreme spread and Std. Dev. Doubled. So did the group. The last one, high and left was the nut behind the trigger. I knew it was gone before I looked.
70grains of RL 19 got me to 2966. Extreme spread was 35 and Std. Dev was in double digits. I began to think my scope had taken a dump but a follow up group with my go to 180 gr. Partitions proved it wasn’t the scope.
Confirmed a couple of things; Accubonds will shoot in the old girl, she doesn’t like to be pushed and she is just plain fun to shoot.
The first group, 69 gr. Rl 19 came in at 2914 for five shots. Extreme spread of 11.6, std dev of 4. Also running the new Garmin chronograph. First three shots went into about 1/2 moa. Did the math and put two shots dead center on the 300 yard gong. Garmin appears to be pretty accurate!
Next up was 69.5 grains of Rl 19, came in at 2928. Extreme spread and Std. Dev. Doubled. So did the group. The last one, high and left was the nut behind the trigger. I knew it was gone before I looked.
70grains of RL 19 got me to 2966. Extreme spread was 35 and Std. Dev was in double digits. I began to think my scope had taken a dump but a follow up group with my go to 180 gr. Partitions proved it wasn’t the scope.
Confirmed a couple of things; Accubonds will shoot in the old girl, she doesn’t like to be pushed and she is just plain fun to shoot.