Initial test today with the Staball powder. 24" AI AT stock gun, Atlas front, bean bag rear.
WInchester Staball
1X Hornady brass, sized on standard RCBS die with expander ball(more on this)
Fed 210M
140 SMK
2.8 OAL
300 yards-Forgot Kestrel--72 F 30.03 pressure approx 90ft ASL
I'm leaning on the 43.5-44.1 on the high end and 42.6-43.2 on the low? My plan is to load and group test at 100?, picking one of the nodes, maybe tweaking the charge weights, thinking .2 increments and 3 total charges?
Requesting input.
One thing that will change, I loaded these being sized as stated. A 2 week delay in testing has me switching my sizing. Removing the stem, size as before full length and bumping .01-.015, best I can measure and using a .001 Mandrel that's arriving tomorrow. Hereafter, they will also be annealed after every firing.
First set then tweaked dope to have shots closer to center and on paper
WInchester Staball
1X Hornady brass, sized on standard RCBS die with expander ball(more on this)
Fed 210M
140 SMK
2.8 OAL
300 yards-Forgot Kestrel--72 F 30.03 pressure approx 90ft ASL
I'm leaning on the 43.5-44.1 on the high end and 42.6-43.2 on the low? My plan is to load and group test at 100?, picking one of the nodes, maybe tweaking the charge weights, thinking .2 increments and 3 total charges?
Requesting input.
One thing that will change, I loaded these being sized as stated. A 2 week delay in testing has me switching my sizing. Removing the stem, size as before full length and bumping .01-.015, best I can measure and using a .001 Mandrel that's arriving tomorrow. Hereafter, they will also be annealed after every firing.
First set then tweaked dope to have shots closer to center and on paper
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