2 corrections regarding my last post to Moosemike....I typed that the Alliant MV for 66 gr RL 17 for the 300 WSM using 180 grainers was about 3180 fps. Correct # is 3082.....I also typed that my hand loads 66.3 gr of RL17 was used to get 2917 fps with a 180 gr Hornady......Actually was 66 gr of RL17..The 66.3 was used for a 168 VLD.......
What do you reckon your load would do in a 24" barrel, all other things being equal?
Too hot...
When RL17 first hit the shelves I ran some of Alliant's max 180 loads in my 300 WSM and darn near locked up the bolt. Nothing I loaded above 65.0 RL17/180 made me comfortable, and I finally settled on 64.5 gr's RL17 with a 180 for 3,035+ fps. Breathes easy, no ejection hitches, and generally produces fine accuracy. At last count I've used the 64.5 load in four 24" 300 WSM's over the years. It works well and consistently give 3,035+ fps in all rifles.
A 300 Mag is about a 180 at 3,000 fps. give or take. Pushing one of the smallest of them to 300 WBY velocities is not solid thinking...
