Powder for 300 wsm

Rick Richard

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Joined
Jan 7, 2014
Messages
4,340
Location
North Carolina
Does anyone have a good load for Superformance loads for a 300 RSAUM? I asked Hodgedon and the technician said no data available.
I know that the OP is asking about the WSM but I just started working on a project with a Remington 700 LTR 20” barrel and 166 Hammer Hunter bullets.
On offense, but you should probably start your own thread so we can keep this one on track.
 

Laguna Freak

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Joined
Jan 5, 2015
Messages
537
Location
South Central Texas, just north of the Wall
If you run across RL23 it would be worth a try. Be careful with RL17 and Magpro with temperature swings.
I’ve loaded some RL23 with my 180’s mentioned earlier just to see what I get. I started at 64.5 gr and loaded up to 66 gr. I’ve shot RL16 up to 64.5 gr with no pressure signs and its HOT in TX now.
 
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fxdwg03

Active Member
Joined
May 17, 2016
Messages
31
Location
Missouri
I have been using this for several years and it is accurate:

Powder: RL17 - 66.6 grains
Bullet: Barnes TTSX 168 grains
COL: 2.86

I have used this load data in a couple of 300 WSM rifles (Remington & Tikka) and both were sub-moa.
This was the 100 yard target from the above load data. The shot on the right was my fault as I did not have the sand bag firmly secured. The other 4 shots are all touching and I was adjusting my scope with each shot. I cannot find my other target after the final scope adjustments. This load has done well and I use this in my Tikka 300WSM.
 

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Hudge76

Member
Joined
Feb 14, 2021
Messages
19
Location
Alaska
I’ve been testing StaBALL 6.5 and 165 gr TTSX in my Tikka T3 300 WSM. I got my best groups at .150” off the lands. I’ve since bought a Mountain Tactical extended bolt catch and magazine. I plan on seeing how it groups at .050, and .075” off the lands. Due to magazine restrictions I started at .086” off.
 
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