I got some imr 4831 for 270 140 grain win partition and 210 gr 338 win partitions. I was leaning toward imr 4350 since its a faster burning powder . I was seeing if anyone had any luck with these powders
I know it's hard to to find the 4350. I got a lb jug of 4831 . I read the books it can use it both calibers . I guess there's only way to find out lol. I didn't know that slower burning powder has a big effect on the 210 gr bullets
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