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300 winchest magnum loads

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Old 01-16-2013, 09:25 PM
Bronze Member
Join Date: Feb 2008
Location: pa
Posts: 31
300 winchest magnum loads

am looking for your favorate loads using beger bullets of 165 to 190 grain.what are your velocites are you getting?
gary b...
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Old 01-16-2013, 10:01 PM
Silver Member
Join Date: Oct 2011
Location: South Dakota
Posts: 173
Re: 300 winchest magnum loads

I have been using 185gr. bergers with H-1000 77grs. seated at 3.450" out of my savage 110. I don't have a chrono YET so help there. My 200yd zero has been less than 1/2" I also have some 190gr. bergers I haven't loaded or shot yet but so far I am happy with the accuracy with the others.
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Old 01-17-2013, 08:56 PM
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Join Date: Jan 2010
Location: Leominster mass, originally Salisbury Maryland
Posts: 1,324
Re: 300 winchest magnum loads

My 300 win mag likes 74.5-rl19, and a 168 barnes TSX, and a 215 GM primer. Velocity is right at 3152, with low SD, ES. I don't have the OAL with me at the moment, but this load is ver consistent. Also have done well with rl22 , but the 19 does better, as my barrel is at 24 inches. Work up to the load with caution of course.
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Old 01-19-2013, 08:48 PM
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Join Date: Apr 2009
Posts: 990
Re: 300 winchest magnum loads

I have a couple of long range hammers for the 300 WM. I push 215 grain Bergers at 2930 fps with 77.7 grains of Retumbo in Remington brass. I also have a Berger 230 load at 2800 fps with 75.3 grains of Retumbo. Both loads were developed for my Remington 5r. I use Fed 215m primers with the bullets touching the lands.
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Old 01-19-2013, 11:19 PM
Silver Member
Join Date: Nov 2010
Location: deer park, wa 99006
Posts: 134
Re: 300 winchest magnum loads

Nosler bt's
165g.-76.0 imr7828 @3030 sd 18
180g.-76.0 reloader 22 @3035 sd 11
both rounds are same point of impact out to 300y
Oops just noticed you wanted Berger info.
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Old 01-21-2013, 10:18 PM
Bronze Member
Join Date: Dec 2007
Posts: 65
Re: 300 winchest magnum loads

Was kind of bored this weekend so we tried some 215 gr bergers in my 300 win mag. It was almost minus 40 with the wind. So it was a quick test.
F-215 primers 78Gr of H-1000 with the 215 Gr hybrid .055 of the lands at 2950 fps.
It was in a Model 70classic Winchester. Didn't spend a lot of time shooting but it shot good, under an inch for sure.

I usually shoot a 180 gr hornady with 77gr of r-22 at 3070 fps.
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Old 01-22-2013, 12:00 AM
Platinum Member
Join Date: Jan 2012
Location: Las Vegas
Posts: 1,180
Re: 300 winchest magnum loads

I was wondering this same thing. I have a Browning A bolt with the BOSS and I had it tuned for Barnes. Never measured the velocity and it was a Barnes AMmo load. Now I am reloading and I think the barrel is 24 inches. WOndering if I should use something a bit faster burning than the H-1000. ALso I have some bergers that I have loaded and planning to shoot soon.
Thanks for the input..
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