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? .............................Well!..... Alliant shows 3082 fps from a 24" barrel using 66 gr RL17 behind a Speer 180 gr. Other 300 WSM bores may vary either way or come very close. I am running 2917 using that same load behind a 180 gr Hornady IB. About a 5.2% loss vs Alliant..Do not know what a Speer would do as a comparison. Don't use them.
28 Nosler,,,,300WSM,,,,338-378 Wby,,,,375 Ruger
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