Gonna do some load development for a buddy. Looks like RL-25 is the most accurate in the Nosler Manual for the 160's

Any recommendations?

II've only loaded for one and it liked 7828 but I don't think RL25 was around. MRP did well as well.

H-1000 and 160 Accubond

I have been shooting IMR 7828 in my 7mm WBY Mag for some time now and find it to be a good choice.

Recently I had to try to develop some new loads due to the dumb ass CA laws regarding lead bullets.

Since I was going to try the Barnes TSX in this rifle I decided I would try RL 25 as well. Turns out with proper loads it is about a toss up in my rifle, IMR 7828 or RL 25 both shoot quite well and give similar velocities though the RL 25 did go just a little faster.

I wound up using the same charge of IMR 7828 with the 160 grain Barnes TSX that I had been using with 160 grain Nosler Partitions.

Take a hard look at Ramshot Magnum also. It excels in my 257 wby, and others also have tried and really liked Magnum, not effected by temperatures, is a spherical powder, and goes thru the powder thrower like a charm.

I've had good luck with R22 and IMR7828, but see no reason why R25 wouldn't work as well.

Good Luck

Reloader