Powder suggestion for 270WSM

[wcat]

Hi, I just got a 270WSM.
On hand I have the following powders that could suit that caliber: IMR4350, 4831 & 7828. Hogdgon H-1000. RL-17. W760.
I intend to shoot 140-150gr bullets, what are you suggesting I should start with?

Thanks!

 

[srt4u2nv]

59gr RL17 under 150gr bullet....also consider the 130gr Barnes TTSX it will out preform the 140-150gr conventional bullets with a flatter trajectory...........

 

[reb]

I hve good results with IMR-4350 and 140gr bullet.

 

[brotherjack]

I run 69.5 grains of 7828 in mine, or a similar load of Reloader 22 also git er dun, or 72-ish grains of Reloader 25 as well -- all using 130 grain bullets. Good for about 3350-ish FPS in my 24.4 inch Tikka T3 barrel (and the Reloader powders being the most accurate). So, out of what you got there -- I'd say reach for the 7828 and the H1000 1st.

I see lots of people recommending fast buring powders in the 270WSM -- I have yet to figure out why? You loose a lot of velocity compared to what you can do with a slower powder, your case fill is nowhere near 100%, and I have found in most cartridges (including the 270WSM) that a too-fast powder leads to sloppy accuracy, whereas running a slow-for-cartridge powder in a well compressed charge tends to be the 'money load'.

YMMV, I suppose.

 

[manitou210]

RL 17 also one Magpro

 

[RojamB21]

H4831sc

 

[Henry Nierychlo]

Delete

 

[6mm Shooter]

Rl-17 for velocity

 

[Lefty Dick]

I'm running IMR 4831 in my 270WSM, and getting 3330fps with 130's, a buddy is using IMR 7828 in his with 130's and he's getting 3315fps.

 

[killswithkimber]

I have good luck with H 4350 behind 140's

 

[6mm Shooter]

I have shot 140s at 3450 out of a savage with reloader 17.

 

[brotherjack]

I have shot 140s at 3450 out of a savage with reloader 17.

Not south of 65,000PSI you didn't. (either that, or you had a 30 inch barrel or somesuch).

 

[john-brennan]

H4350 behind 130gr partition was accurate, (3300fps) .6'' groups.