two loads I've been using in my 300rum rifles:
RP brass for both
180 hdy fb
93-94gr. rl25
215
3.650" oal... this load is good for about 3300 fps and 1/2 to 2/3 moa average accuracy
225 hdy hpbt
95gr rl33 or 100gr rl50--- either powder works but rl50 is rather compressed
215
3.650" oal... these powders will push a 225 grain slug to 3,000 fps with ease. great accuracy but also generates recoil
I've been playing with 200 eld-x and rl33, but the load lost accuracy in cold weather... time to work with other primers and possibly sub rl25, rl26, or retumbo in for the rl33.... rl33 seems to like to have a HEAVY load on it before it behaves... no mid weight bullets for that powder