300 WSM Loads

[baldhunter]

I'm planning on loading my 300 WSM with 165gr and maybe 180gr bullets.The powders I'll be working with are:
IMR-4350
Reloader-22
Winchester WXR
Anybody got any load suggestions with these powders.
Thanks

 

[MontanaRifleman]

You might look at H4350 and Reloader17. Start around 61-62grs and look for max about 65 give or take, depending on bullet and seating.

Haven't used the other powders in the 300 WSM, so cant help you there.

 

[ZSteinle]

I have had good luck with H-4350 also. 168gr. i am using 64gr. of H4350

 

[DrMike]

One of my favourite hunting loads is 69.5 grains of WXR with CCI250 primers and 180 grain Fail Safes. Velocity is ~2950 with sub-MOA groups. 68.5 grains of WXR and WLRM primers gave good groups with both 180 grain Nosler Partitions and 180 grain Kodiaks. I have used this load with Speer Grand Slams with good results (3/4 to 1 inch groups and velocities to 3000 fps @ 70 grains).

63 grains of IMR4350 and WLRM primers yields sub MOA groups with Hornady 180 grain SP (velocity = 2850). Upping charge to 65 grains yields velocities of 2950 without degrading groups size significantly. 65 grains of IMR4350 and WLRM primers gives 1/2 inch groups with 180 grain Hornady InterBonds and velocities of 2967 +/- 8 fps.

With 165/168 grain bullets, I have had excellent success with IMR4831, RL15 and H380.

 

[britz]

I have good luck with H4350, CCIBR2, win cases, and 180 Nosler AB's. I used to use IMR4350 but switched to the Hodgdon extreme line simply because of the temp sensitivity of the older IMR poweders.