I'm shooting a 300 WSM and wanting to load some Barnes 168gr TSX bullets... I'm using RL22 powder... Does anybody have any info on how many gr of powder I can safly use... I was thinking 69gr of RL22 with the 168gr TSX...

I'm guessing 65. The max listed for RL 19 is 69.5, I don't think RL 22would bethe same but you may be able to squeek 69, seen stranger things.

According to Barnes 3rd Manual300wsm 165/168 X(uncoated)
RL22
Min 67.5 - Max 72.5

(Barnes suggest using the above datawith theTSX but do mention it maybe possible to add 1-2 grains above this max due to the reduced pressures of the TSX)

Skeeter, have that same exact manual. And it shows on page 381 70.5gr of RL22 to be max with a uncoated X bullet. Whats strange is the 180gr data is almost the exact same for RL22. Typical barnes manual inconsistencies.

So if you follow thier guidelines, you can add 2g to 3gr before hitting max. Maybe thats what you were saying.

Long, I have found with my 300RUM's I could go over 2-3gr over max for an uncoated x bullet before hitting pressure signs. But a 300RUM was using over 90gr of powder. For a smaller case, like your WSM, I suggest starting at 67.5 as skeeter shows, and working up in 1gr increments until you hit 71.5gr. After that go in .5gr increments until you hit 73.5gr. I wouldn't go past that. I would spend a few hours at the range at first to see pressures signs. And next work up for accuracy.

Barnes annoys me. They come out with a error filled manual to make sure they cover the new calibers WSM and RUM and SAUM. And then comes out with thier biggest introductions in years, the one bullet that will bring people back, the TSX and MRX, and just give us this rough guideline.

I use 70.5 grs of RL19 and average 3055. Here a 5 shot group at 100yds with 168TSX.

Of course start low and work up to you see pressure signs!

I did shoot a hog with the 168TSX and was very please with the bullet performance

Thanks BC,typofrom print to post[&o]!

Your right it is weirdlist the 180 xbt at 70.5 max for RL22.Also noticedthe 165/168 XLC is listed at 74.5gr max for RL22(Pg 382).[&:]

From Barnes # 4.
RL 22 is not listed. A little tooslow burning for that cartridge I guess.