270 WSM Load data needed
- Thread starter mkelly164
- Start date
mkelly164":2on53bak said:
No idea what they use, but I would probably start with their most accurate powder listed in their manual. I imagine you will find an accurate load pretty quick. I use RL22, IMR7828 and MagPro in my 270WSM and it shoots them all very well with 150's. Good luck with your load work. Scotty
Mountain Goat
Handloader
- Dec 14, 2010
- 386
- 12
Just about any powder slower than the 4350's seem to work in the 270WSM. I have found that Magpro is the way to go with 140-150gr bullets. Many find RL-22 very good, too. I didn't test the 150 grain bullets too much, but did find that 69.3gr of Retumbo and a Sierra GameKing to be "target grade" accurate in a few different rifles. Retumbo wasn't quite as fast as Magpro or IMR7828 but it sure made a mess out of the x-ring.
Hank Hunter
Beginner
- May 14, 2006
- 117
- 0
With the 140 grain AccuBond I found RL22 to be extremely accurate with 2 different 270WSM's
- Oct 30, 2004
- 24,278
- 2,989
140 Ab and rl22! :twisted:
eric 270 wsm
Beginner
- Mar 9, 2010
- 13
- 0
mine likes Supreme 780 from winchester and 140 accubonds
Mighty Peace
Handloader
- Jul 5, 2006
- 328
- 2
My one 270WSM loves 69.0gr of Retumbo the other likes 71.0grCOMPRESSED LOAD. Both shoot 140gr Accubonds with Federal 215 primers. 3260-3300 ft/sec. Well under 0.5" groups.
2ndtimer
Handloader
- Sep 26, 2004
- 269
- 11
My .270 WSM had the best results with the 140 gr AccuBond and 65.0 gr of Vihtvuori N-165 with Federal 210 primers and Winchester cases. However, it also produced excellent accuracy with Reloder 19 and 90 gr Speer TNT's and 130 gr Ballistic Tips, and decent results with IMR-4350, Reloder 22, and MagPro with 130 gr, 140 gr and 150 gr Ballistic Tips. The only powder it didn't seem to like was H-4831, although many others have reported good results with that powder.
