If anyone has a formula for a right-on load for this caliber and bullet I would appreciate any suggestions. Powders onhand include: RL17,RL 19, MagPro, Retumbo,IMR 4831,H4831and Hunter. Any info appreciated. Thanks.

haven't worked up a load with mine yet but from the info ive gotten from everyone is that they have all shot best on the hotter side of the scale. my plan to hopefully save a little time and components is to start with a mid charge and work up from there instead of starting all the way at the bottom. good luck.

I don't have my data in front of me but I can tell you I'm using CCI 250 primers,130 gr Interbond and a max load of H4831. I believe that is 67 grs in my rifle. It shoots 3 shot clusters that literally touch each other @ 100yds. Devastating on deer.Check the Hodgedon manual for a safe starting load and work up carefully. Hope that helps

For what it's worth, I shot a red hartebeest and gemsbuck with 7mm 139-grain Interbonds at 2 960 fps from my 7x64 last week.

The hartebeest was exactly 200m away and I hit the bull squarely in the heart. The bullet ended up under the skin on the far side and it weighs in at 85% of unfired weight. The animal collapsed in his tracks.

The gemsbuck was 284m away. I hit her (it was a barren old cow) low on the shoulder. The bullet broke both shoulders and exited, shredding the heart along the way. She went no more than 10m and was dead by the time I got there.

Fantastic bullet, best value for money out there, in my humble opinion.

out of the powders you have listed the magpro showes to be the fastest in the nosler book. it shows a max load of 72g which is a compressed load to 102%. the only other powder that shows to be just a few fps faster is the RL22 with a max load of 65g which is only at 97%

I shoot two .270 WSM's extensively, along with my son and two grandson's. We have never shot the Hornady Interbonds, but have shot 130 grain bullets in Nosler Partitions, North Forks and Nosler Solidbase. We have tried all the slow burning powders sold in this country and three stand out. RL-22, RL-25 and Magpro. The RL-25 is our go to powder on the 140 grain bullets, but we use it some on the 130 grainers. With RL-22 and Magpro we get 3400 to 3460 fps with the 130 grain bullets, the higher speeds being bullet specific, the North Forks giving the higher speeds. We use nothing but Fed 210M primers with all loads. With the 130 grain bullets the .270 WSM's are awesome Deer sized game chamberings. For the larger stuff we go to the 140 and 150 grain bullets. Good shooting.

In my .270 WSM, I found the best accuracy with IMR-4350 when using a 130 gr. NorthFork. The load was 59.5 gr. and gave a vel. of 3263 fps on the chrono. The groups were 7/8" for 4 shots and 3 went into 3/4". That's the best this rifle seems to want to do. Haven't tried any Hornady bullets. MAybe this will help a bit tho. Bear in Fairbanks

I went with 65gr R22 powder and 130gr Nosler Accubond. Came out to 3050fps in mdl 70 24in barrel. This was a max load in Nosler data, but Lyman was 64.5gr min, and 68gr max. I am going to increment in .5gr increments to try and match the factory load below.
Factory Winchester 130gr Ballistic Silvertips were 3254fps out the barrel.