300 WSM 180 grain with a MV 2800 - 2900 is about right. Same in my 300 WSM. 200 might be more of twist rate issue with the rifle, hence finnicky loading? The twist rate might not be fast enough to stabilize that heavy a bullet in the 300 WSM. I believe the 300 WSM was built with 150 - 180 grain bullets in mind. The 300 WM is better for 200 grains (I could be wrong too). And I have never had any issues reloading for my 300 WSM.
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.300WSM once fired brass unloadable?
- Thread starter shorttrac
- Start date
thats what I thought to until everything shot terrible to so-so in lighter weights unless velocities were very low. Then I consulted the sierra book with an accurracy load for some 200 sierras I had and all of a sudden things came together. I will say the load because it is right out of the sierra manual. It is 68 grains RL19 and it is supposed to be around 2950MV. It is one of the most accurate loads I have ever shot with any gun and velocity is a little better than 3000 on a warm day with Sako and Tikka. It is stout but gives no warning signs. I would recommend that load for every .300WSM as the two guys I make it for are very pleased with results. I normally would go lighter but the high B.C. and good speed make it outperform the lighter stuff.
I have a Win. Super Grade in 300 WSM. I've used 200 Speers, 200 Partitions and 210 Berger VLDs none of which gave any problems. These might not be the absolute best at very long ranges but are more than adequate for the average user IMO.300 WSM 180 grain with a MV 2800 - 2900 is about right. Same in my 300 WSM. 200 might be more of twist rate issue with the rifle, hence finnicky loading? The twist rate might not be fast enough to stabilize that heavy a bullet in the 300 WSM. I believe the 300 WSM was built with 150 - 180 grain bullets in mind. The 300 WM is better for 200 grains (I could be wrong too). And I have never had any issues reloading for my 300 WSM.
Jim
