I am currently shooting a REm 700 Sendero. My current load is;

190 Sierra Match King
71.0 AA3100
WLRM
Win cases

This load will put three in .5"

Any recommendations for other powders, primers?

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NRA Life Member

America, Love it or LEAVE IT!

For my Mod 70 Laredo in 300 Win Mag:

200 Sierra MKHP
70.0 grains R22
Win cases - prepped
Federal 215 Gold Medal Primers
2780 fps
.710" avg@100yds for five rounds
11.70" best group@1000 yds for five rounds

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I don't have my benchrest rifle is 300WIN MAG anymore, but here is what it liked

>Federal Gold medal brass, 67.5grs. AA4350, 190gr. JLK or 190gr. SierraMK, Federal 215M primers, bullets just touching lands. Had 10 shots go into just a hair over 3" at 550yds

My M70 Laredo likes this:

175 gr. MatchKing
71.0 IMR 4831
Federal Gold Medal Standard Primers
OAL: 3.510

Haven't measured a group yet, but it does one hole at 100 yards. (Fingers crossed for long range!!)

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Happiness is a 200 yard bughole.