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H 4198/IMR 4198

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Category: Reloading
Forum Name: Reloading .303 British
Forum Description: accepts NO responsibility for any loads that may be used by persons reading this forum. USE CAUTION WHEN TRYING ANY NEW LOADS!!! ANY DATA DEEMED UNSAFE WILL BE REMOVED!!!
Printed Date: May 21 2018 at 7:48am
Software Version: Web Wiz Forums 11.05 -

Topic: H 4198/IMR 4198
Posted By: BillyHill
Subject: H 4198/IMR 4198
Date 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. 

Posted By: Stanforth
Date Posted: February 23 2017 at 9:12am
I treat them as the same.

Life.. a sexually transmitted condition that is invariably fatal.

Posted By: dodgyrog
Date Posted: March 21 2017 at 1:24pm
Personally I would use a starting load of 16gr of Alliant 2400

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