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Post by dans on Jan 29, 2019 20:58:07 GMT -5
After getting good advice from this board, I am in the process of converting a CVA Hunter in 45/70. I am thinking of having the barrel cut to 20 inches. I want to shoot the Barnes 195 mz with a sabot. I am needing input on the type and amount of powder to use in this short barrel. Also if anyone knows approximate velocity of said loads this would be appreciated.
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Post by rvaughan on Jan 30, 2019 11:43:19 GMT -5
55 - 58 grains VN110 with Harvester Blue sabot.
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Post by GMB54-120 on Jan 30, 2019 11:58:14 GMT -5
That much N110 is way too much. Using N110 i would start around 31gr and work up slowly to no more than 37gr. After that it will almost certainly be blowing sabots. About 33-34gr should get you in the range you want. SR4759 should work too if you have any. About 38gr. Look at traces 50b and 51b   |
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Post by rvaughan on Jan 30, 2019 12:17:58 GMT -5
Sorry about that. Those weights are for 4198 powder.
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Post by GMB54-120 on Jan 30, 2019 12:59:04 GMT -5
Just an opinion but if i was considering 4198 for a short barrel and lighter amounts i would move up to a heavier bullet like the Fury's if its a 209 conversion. That is probably just fine with a LRMP setup though. Them Barnes 195gr can be a little finicky too if the bore is a tad large. Something like a 10/45 duplex might help get the peak up a bit and a better burn?  |
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