300 wsm

I don't have one in a hunting rifle, but I have one in a 1000 yards competition heavy rifle. I use H4831SC with a 210 grain Berger bullet. 4350 works almost as well for me.
 
I don't reload the 300 WSM but do have and reload for the 270 WSM and MagPro is the best powder i have tried . I use the Nosler 140 gr Accubond.
 
I use the new IMR4007ssc powder that was recently developed specifically for the short mags. Uses 15% less powder to get the same velocity which also means that you will not be compressing max loads.

180gr SMK with 60gr IMR4007ssc will get 3000 fps.
300wsmGroup.jpg
 
Good target.

I ran 210 bergers with IMR-7828ssc. Forget the vel. I'm thinking it was 28-2900. The accuracy load had an SD of 12.

If I laid off the coffee it did lots of these at 62.3 gr.

averydotpp5.jpg


For hunting I might have tweaked the 64.3gr node.
 
Near max dose of H4831sc and the 180 grain Nosler Partition. Chrono'd at 2935 fps. Groups right at 1" at 100 yards. Took it to the 500 yard target range and was hitting about 60% of the clay targets I was shooting at. Plenty good for the 200-300 yard deer and elk I hunt!
 
Back
Top