best brass and load for 300 WSM. Building my first sheep gun

[Frogman77]

I've switched to Hornady brass. Norma has repeatedly go em my problems in multiple calibers including 300 wsm...

 

[littlebighorn]

My last build I used the Berger twist calculator.

Twist Rate Stability Calculator

Our newly updated Twist Rate Stability Calculator not only tells you what your SG is, but it also lets you know if you are reaching your optimized BC.

bergerbullets.com

As far as Barnes are concerned, using RL17 and the 168 TTSX with a .050 jump I get cloverleafs at 100 Yds. Remember when setting up either Barnes or Bergers they both like to jump.

I have used the same RL17 and 168TTSX combination in my 300WSM on 3 of my 4 sheep. Mine has also taken one elk at 550 yds. so I can attest that it works for both.

 

[Mowgli Terry]

This probably don't count but I had chronic split necks with my first lot of Winchester 300 WSM brass. The remainder have been annealed. I'm meditating on what to get next. I had to trash 38 rounds of once fired Federal due to loose primer pockets. This Federal rounds were fired by me in my A bolt. History with WSM brass has been star crossed on the best day.

 

[25WSM]

H4350 with the 210 class works great.
Shep

 

[richhymas]

I have a Magnesium XLR stock and like it, but would not be what I would put on a lightweight rifle. I would go with a carbon fiber Manners. Just my opinion.

I may be able to have both stocks and swap them out as needed. There will be times I want to fold that stock up when size is primary concern and times when I would rather have a rigid stock.

 

[RevJim]

168TTSX, 64gr R17, WW brass prepped, Fed 215M shot in cold and heat, no changes in speed! 3168fps from 24" Kimber 8400 classic, honest .5" shooter!