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Does anybody know what powder and primer Black Hills uses on their 300 Win Mag 190 Sierra Matchking round? I am trying to duplicate the ballistics of this particular BH load.
My guess is they use Reloader 22?
Thanks guys for the tips. I've been reloading for years now but mainly all magnum rifle loads. First time with the 357. I just loaded 50 last night using H110. Used a heavy crimp, CCI 550's. I loaded some 125 XTP's with 22 grains and the 125 GDHP with 20 Grains. If I have a new, modern gun, I...
Right, but you are not suppose to reduce H110 loads by no more than 3% of Max because of the possibility of hangfires.
This brings up another question, is it wise to adhere to a bullet manufactures loading data or the powder manufacture? I would assume the bullet as they would have pressure...
I am looking for a proven, tested, recipe using H110, CCI 550, and Speer 125 GDHP bullets. I see a lot of users are using the 22.0 grains max using the 125 Hornady XTP which is listed on Hodgdon's website but what about the 125 GDHP?
Using a GP100 6"
Thanks,
BJ
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