Best powder for 20inch barrel

[laird86]

Hi,

I have went out and bought myself a sako75 in 243, It has a 20inch barrel with 1/10 twist, As a have a .270 for shooting larger bullets i want to shoot lighter bullets around the 58gr mark with a good bit of punch behind it, Any powder recommendations?

Regards
Laird86

 

[K22]

My Rem Model 7, 20 inch barrel shoots IMR 4350 with 85 Sierra BTHP's quite well for a very light barrel in a plastic stock, groups are in the range of .6 to .7's.

Other powders that have worked well for me in the 243 are: IMR 4064 and Varget (the latter with light bullets).