300 weatherby load data

G

gary brezinski

Member
Joined
Jul 7, 2001
Messages
23
Location
pa
sir,
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
 
A

AFP

Guest
Gary,

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.

Blaine
 
I

Ian M

Well-Known Member
Joined
May 3, 2001
Messages
2,410
Location
Sask. Canada
Gary,
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.
ian
 
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