Powder for 300 wsm

[Rick Richard]

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.

 

[SamuelBerryhill308]

On offense, but you should probably start your own thread so we can keep this one on track.

Agree

 

[Possum Cop]

On offense, but you should probably start your own thread so we can keep this one on track.

Understood.

 

[Laguna Freak]

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.

 

[L.Sherm]

The new RL16 and 23 are very stable, the older reloader powders not so much.

 

[fxdwg03]

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.

 

[GrayCreed]

7828ssc

 

[JAYgs8163]

Accurate 4350 at Midway this morning

 

[Hudge76]

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.

 

[Highcountrybulls]

I've seen excellent single digit ES & SD from 7828SSC and H414 (not mentioned in OP but thought I'd throw it out there). I've experimented with RL19 and been unsatisfied with the ES/SD results.