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Joined: Jul 2010
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In the 375 H&H I use WW 760 for the 275 BBC...I have used this load to dispatch my NA bears...

a friend of mine likes 4064 for 250s, WW 760 for 270s and IMR 4831 for the 300...


"To pick a rifle and bullet for use on game by muzzle energy alone is, at best, foolish...and can be dangerous to your own health..." Bill Steigers, April 23, 1980
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I like RL15 and IMR 4350.

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I have been told by a guy that pressure checked for the 375 H&H that RL-17 was the best powder for 300 grains and up.At factory velocities the pressure was low and for the heavier weights,his reply was,it really made them scream!!!

Jayco

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RL-15 hands down -- at least for my rifle. 270 TSX and 73.5 grains of 15 is like "buttah."


Chris
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mine likes 75.0 gr Rl 15 under a 270 gr tsx and mag federal primers.....

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Well, based on preliminary shooting of the 300 gr. DGX and DGS, with H4350, I'll be doing a lot more testing with that powder.

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I second the RL17. I've tried H4350, RL15, 760/414, and Big Game. RL 17 gives the best pressure/velocity readings with the 300gr Swift A-frame. I've had around MOA accuracy with all of them but RL17 is the most consistent and I'm getting 2615 fps without any pressure. I've reached pressure signs at about 2550-2575 with the other powders mentioned. I actually had no pressure up to 2675 with RL17 but found a more accurate load down around 2600.

I'm headed to the range again today. I leave on Tuesday for my Zim Buff hunt. Wish me luck!
Lee

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What powder works in someone elses gun may or may not mean a thing in your gun..You have to discover that for yourself..Fortunately for you you picked a caliber that is EASY to load for and most are not picky..

I always try IMR-4064, H4350 or RL-15, to start with, but have had luck with IMR-4895, WW-760, H414..

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Varget



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Varget and Big Game


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Those who live by the sword get shot by those who don't.

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