Originally Posted by awesfall
I am new to reloading and am working on gettin the proper supplys to reload a 300 wsm. I am not sure on what all i need or what is the best to use and was hoping for suggestions and comments..
i am looking to take 1k shots and would like suggestions on brass primer powder the works. any advice would be very helpful...
I would start with RL17 and experiment with fed 210's and 215's
Using 180 E-Tips with 67.5 gr of RL17 I got 3193 fps without noticable pressure signs on a warm day, close to 70* (GM215M) With 210 Berger VLD's I got 2935 fps with very slight primer cratering at 65.5 gr. No stiff bolt or ejector marks.
The 180's were seated to just barely fit the mag, the Bergers were seated to touch the lands.
DO NOT start with those loads. Work up carefully. My rifle has a lot of free bore. If yours doesnt it may max out sooner. I would start with 59 gr with 210's and 61 gr with 180's. You might also try 200 AB's and start about 60 gr with them.
If you achieve 3100 fps or higher with good groups with the RL17, I personally wouldn't even try anything else. No other powder will get you close to that in a 24" barrel.
If you dont get good results with RL17, I would try H4350 next and start one grain lower.
Norma brass is by far the best available for the 300 WSM.
Welcome to handloading and good shooting,