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Post by jtwodogs on Jan 1, 2009 16:21:55 GMT -5
Everyone seems to lean toward H4198. I myself have been using it, but am about to run out. I have some IMR 4198 on hand even though I know they are not inter-changeable, is there something about it that is not desirable?
Thanks guys.
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Post by smokeeter on Jan 1, 2009 16:43:45 GMT -5
I only use the imr, if you're going to sub the H with it be sure to use a couple of grains less of the imr.
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lc
Spike
Posts: 22
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Post by lc on Jan 1, 2009 17:37:27 GMT -5
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Post by richard on Jan 1, 2009 21:12:04 GMT -5
I did some tests with it a couple of weeks ago using a 10/60 - 5744/H4198 duplex and a 300 gr. Rem. .458 bullet. I had been shooting this load for the past two months and everytime I test it, my velocity is right around 2455- 2470 fps. Since I had a can of IMR 4198 on the shelf, I decided to try substituting it for the "H" What I found was the velocity dropped to 2395 fps. Hope this helps!
Richard
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