Went out to the range yesterday to test some loads out for these two and I think I have found a keeper for the 8mm. Rifle is a M700 BDL (factory original)

Loaded up some 220gr Sierra's over RL25. Started at 83grs and worked up to 87grs. Looks like a winner! Group size 1.03" with the 87gr charge.



The .300Wby shot pretty good with the 200gr Speer HCSP over 83grs of RL25. Rifle is a M70

good shooting guns in a couple of my favorite mag calibers. by the way my 8mag loves that bullet too but it loves the nos partion 200 a bit better.

Good group.

Hi Ian. Same answer as on the other site. - dan

Hi, what length barrel?, I will soon have a Weatherby Vanguard in 300 Weatherby Magnum with 24 inch barrel and I do not know what performance loss may occur.

Thanks,

Oscar.

If you have some, give RL22 a shot in the weatherby. From many reloaders opinions, its a match made in heaven! Especially in 24" barrels.

My M70 has a 26" barrel. I have tried RL22 with some 180gr bullets, and accuracy was in the 1.25 to 1.50" zone. I will try some with the 200gr and see what happens. I think I have some 200gr Accubonds.

Well, every gun IS different!

Since you are using the super slow stuff, have you tried any of the 7828's?

Here is RL22. Can't remember if I have tried 7828 yet.