300 win mag loads? - The HuntingPA.com Outdoor Community
 
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post #1 of 6 (permalink) Old 07-18-2011, 12:50 AM Thread Starter
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300 win mag loads?

whats a good load for a 300 win mag? I'm thinking 180 sierra game king boat tail spitzers?
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post #2 of 6 (permalink) Old 07-18-2011, 10:13 AM
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Re: 300 win mag loads?

In mine with a 165 bt I use 72 gr of IMR 4350 and with a 180 Hornady bt I use 70 gr of same powder with either a Rem 9 1/2 or 9 1/2M primer in either WW or Rem cases. No problems with pressure and both are accurate.

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post #3 of 6 (permalink) Old 07-18-2011, 12:44 PM
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Re: 300 win mag loads?

H4831 and 180's work very well in mine

Oh..and to add...imr4064 works well too, very accurate, but NO speed. It's a great load for PA deer because it duplicates 30-06 velocities however.
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post #4 of 6 (permalink) Old 07-23-2011, 06:50 PM
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Re: 300 win mag loads?

mine shoots best at or very near maximum loads..165 gr sierras behind 77gr of IMR 4831 shoots 3 shot groups you can cover with a quarter..any day of the year. WORK YOUR WAY UP TO THAT LOAD!!!!!!!!..it is a MAX load..hot!!..
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post #5 of 6 (permalink) Old 07-23-2011, 06:53 PM
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Re: 300 win mag loads?

with the 180 sierras i use 73 grains of imr 4831 which is almost max in my rifle also..
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post #6 of 6 (permalink) Old 07-23-2011, 06:55 PM
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Re: 300 win mag loads?

Of all the different combos I've tried ( and I load for 4 different .300 Win Mags) the most consistenly accurate deer load is a 180 gr. Speer Grand Slam over a book max charge of IMR-4350. Runs around 3050 fps and the Speer GS ALWAYS holds together and puts two holes in a deer.

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