on December 21, 2009 10:55 AM
I met my velocity requirements with 3 different loadings today: 25.0, 25.2, and 25.3 grains.
25.0:
25.2:
25.3:
I'm somewhat tempted to go with 25.0 grains, as it would be the lowest pressure of the three, but 25.3 had the least variation and was the only loading with every measurement > 2700 fps.
The brass of all three show no signs of overpressure that I can discern, and was much cleaner today.
I think 25.3 is the ticket.
I was shooting these strings at 100 yards with iron sights and one sandbag, with not much effort in trying to shoot for accuracy. I was really trying to get done as fast as possible. To my surprise, when I went to check out the target I was shooting at there was a 4" group in the lower right corner of the target, almost off the page. The grouping had roughly 50 shots in it, which is roughly how many shots I fired today. They are all very accurate loads apparently. I might even take the time to adjust my iron sights now.
Now to start churning these out in number.
25.0:
| 2711.6 |
| 16.47118696 |
25.2:
| 2733.4 |
| 41.99166584 |
25.3:
| 2733.8 |
| 13.1415372 |
I'm somewhat tempted to go with 25.0 grains, as it would be the lowest pressure of the three, but 25.3 had the least variation and was the only loading with every measurement > 2700 fps.
The brass of all three show no signs of overpressure that I can discern, and was much cleaner today.
I think 25.3 is the ticket.
I was shooting these strings at 100 yards with iron sights and one sandbag, with not much effort in trying to shoot for accuracy. I was really trying to get done as fast as possible. To my surprise, when I went to check out the target I was shooting at there was a 4" group in the lower right corner of the target, almost off the page. The grouping had roughly 50 shots in it, which is roughly how many shots I fired today. They are all very accurate loads apparently. I might even take the time to adjust my iron sights now.
Now to start churning these out in number.
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