Prepped 40, 6.5 Grendel cases yesterday, and was going to load them. However I distracted myself and went and shot about 20 rounds of 6.5x47 in winds too high to really test loads.
The good news is that I found a load range for accuracy worth testing further. The bad news is that the velocity just isn't quite where I want it to be. Unfortunately, by the time I got to the velocity I was content with, my groups were opening up considerably.
Comparing load data; my Brux barrel is almost exactly 30 FPS slower than my Krieger barrel...And they both shot best with the same charge weight.
The good news is that I found a load range for accuracy worth testing further. The bad news is that the velocity just isn't quite where I want it to be. Unfortunately, by the time I got to the velocity I was content with, my groups were opening up considerably.
Comparing load data; my Brux barrel is almost exactly 30 FPS slower than my Krieger barrel...And they both shot best with the same charge weight.
When that happens to me, I move to a slightly slower powder. At least an experiment.
Perhaps something to consider.
It’s a rainy Sunday here in east TX, so I decided to decap a bunch of once fired 38 spl brass I recently bought.
That is good advice. With this particular barrel, I was getting significant primer cratering with Varget a solid grain below published max charges. The slower end of the 6.5x47 spectrum is H4350 class powders...and Reloader 16 is right next to it regarding burn rate. I do get decent speeds with N150, which isn't far away in burn rate either.
I could try H4831/IMR-4955, but those run out of case capacity before they get any real speed going.
What I really need to do regardless is get this firing pin bushed so I can run small primers at higher pressures. I'll do that with the next rebarrel.
*****
Fully prepped another 100 pieces of 6.5x47 brass this afternoon.
I still have the 12 ga MEC Sizemaster set up for the ”turkey” ammo, so I just loaded up the rest of the shot and powder in the bottles.
Winchester 8 crimp high brass hulls
Win 209 primer
WAA12114 wad
30.4 grains of Longshot powder
1 1/4 oz #6 shot
10,800 psi and 1385 fps
Winchester 8 crimp high brass hulls
Win 209 primer
WAA12114 wad
30.4 grains of Longshot powder
1 1/4 oz #6 shot
10,800 psi and 1385 fps
I have three MEC 600 Jr's still in box in my shop
.I just haven't been into shotshell reloading.
I need to move next door...
Loaded 25 rounds of Grendel. Was going to go up to 27.6gr N135 under a 108gr Scenar...but was getting a lot of crunch, and CBTO grew .005 by the time I was at 27.0.
27.0 is book max for the 123gr Scenar (108 is the exact same length), so I chickened out and reloaded the last two charge weights at the bottom of my range.
27.0 is book max for the 123gr Scenar (108 is the exact same length), so I chickened out and reloaded the last two charge weights at the bottom of my range.
When you only shoot 10 rounds, this doesn't take too long!
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