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H 4198/IMR 4198

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BillyHill View Drop Down
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Joined: March 06 2012
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    Posted: December 20 2016 at 8:07pm
I'm starting to work up a cast load for my 303 with a 185 grn gas checked bullet cast from wheel weights. I found data for IMR 4198 with a start load of 21 grains at 1500 fps and a max load of 28 grains at 1950 fps.  I don't have IMR 4198 but I do have H4198.  I was going to start at 22 grains and work my way up.  In the load data that I have seen where 4198 powder is listed, the charge weight is almost identical for  both Hogdon and IMR powder using the same bullet/weight.  Has anyone tried H4198 for cast loads.  I think if I start at the low end and carefully work my way up I should be OK.  The data I have is from the Lyman Manual. 
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