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300 weatherby load data

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Unread 09-29-2001, 05:08 PM
Junior Member
Join Date: Jul 2001
Location: pa
Posts: 23
300 weatherby load data

i have a 300 weatherby mk v.
what would you reccomend for 190 mkhp sierra bullets for loading data?i just trysd 78 gr of 4831 dupont with bad results,group was 1.75 for 3 shots at 100 yds.
gary b
gary brezinski
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Unread 10-01-2001, 04:29 PM
Posts: n/a
Re: 300 weatherby load data


Sierra recoomends 73.4 grains of IMR 4350 with the 190 grain Matchking. You can call Sierra at (800) 223-8799 and get some one-on-one advice from one of their "ballistic technicians." They are open M-F from 0800-2200.

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Unread 10-01-2001, 08:38 PM
Platinum Member
Join Date: May 2001
Location: Sask. Canada
Posts: 2,410
Re: 300 weatherby load data

I have had excellent results with RL-22 and RL-25 (Federal 215 primers, Weatherby brass) - my rifle likes a fairly stout charge for best performance. Best work up to the max in your rifle but these powders are worth a try.
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