I agree with RSY. Try Re22. I think the powders you are using are fine but a bit faster burning.

I also recommend a bigger bullet. A good 140 is still very very flat shooting from WSM.

I'd go with Re22, H1000, or H4831SC.

I've got a new Winchester Stainless in 270wsm and need a good load for the 130gr Interbond. So far I've tried 58.5, 59.5 and 60.0gr of IMR 4350, with Federal 215 primers and was getting 2-1/2" plus groups at 100 yards. I then tried 61.0gr of Reloader 19, Federal 215 primer and I'm getting 1-1/2 to 2" groups. My next step is to try 62.0 and maybe 63.0grs of Reloader 19. Any thoughts???

I got a Savage stainless in .270WSM. it gets great groups, just be sure to clean it often. i dont reload i use federal premium 140 accubonds. they work fine.although im prolly gonna go to winchester accubonds.

Mark,

It's kind of early to tell what the accuracy problem is with just one bullet and light loads. If you have not tried other bullets I suggest that you get a box of Sierra's and work up loads that way. You will save money and eliminate a variable with that brand.

If it's just light loads then look at this data Sierra Data and increase the loads.

For instance I got up to 63 grs of IMR 4350 with 130 gr SST's and that is max in my rifle. It was quite accurate too.

If the big game season is almost over you might try the Hornady 110 gr. VMax for varmint and test bullet.