300 Weatherby Mag load question

Len Backus

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May 2, 2001
Messages
6,714
A friend of mine is wondering what he can expect in velocity with a 180 grain bullet and a 26 inch barrel.

And can you recommend a load?
 

jimbires

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Mar 16, 2008
Messages
1,588
Location
clearfield county , Pa
Len , my 300 is a 24" bbl.

I'm using 180 accubonds , 87.8 grains H1000 , 215 primer , remington brass . ave fps is 3165


I'm going to play a little more with IMR7828 . 180 accubond , 82.5 grains IMR7828 , 215 primer , rem brass . ave fps 3150
 

340Shooter

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Joined
May 29, 2007
Messages
109
Location
Alberta, Canada
180gr Hornady SP
85grs RL22
Wby case
Fed#215
COL 3.560"
3233fps

Rifle was a Mk V Lazermark 26" barrel
 

Long Time Long Ranger

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Mar 12, 2002
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2,612
Location
Wyoming
When I first start loading with a 300 wby I load 82 grains of H4831, cci250 primer and seat the 180 just short enough so it will feed through the mk 5 action. This is a generic accuracy load good in any 300 wby with freebore. I always try this first to see if it is a shooter. I have never seen a mk 5 that did not shoot this load well. Velocity is right at 3200 fps in a 26" barrel. Some newer powders will get more velocity. But this is a shooter to try in any 300 wby.
 

getsmart

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Joined
Jan 2, 2005
Messages
49
Location
Western, Montana
I shoot 210SMK out of my .300 Weatherby.

27-inch barrel 3-groove. I get 2975fps average with 80.5grains of H1000. Fed215 primers. It will go faster, but this load has the best extreme spread. FWIW.

eric
 

Chas1

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Feb 15, 2009
Messages
3,557
240smk, 26" tube, fed215 primers, H1000 80.2 @ 2710 fps.
 

Broz

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Feb 3, 2007
Messages
8,638
Location
Townsend, Montana.
Len, I worked quite a bit with my 300 Wby. This is no High Velocity load but it worked great to 550 with a BC reticle.

Mark V 26" accumark Barrel

Wby case

Fed 215 GM primer

79 gr of H-4831

190 Berger VLD seated just .020" shorter than the mag box so it will pass through freely.

Velocity was 3050 and was a pretty consistant 1/2 moa rifle to 550 yards.

Jeff
 

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