Never had any luck with Varget, but the other 2 will work. I use H380 in my 243 with the 55g BT's, it is one slower on the burn chart than R15. Across my Chrono at 4188fps, .5" groups at 100, 2.75" at 300

If I'm not mistaken, Nosler has 760 as the most accurate powder for that bullet, but would have to double check, Jay

I'm probably thinking of the 6mmRem. though, since 760 is the most accurate powder for that round and bullet.

I've worked up loads for several tikka 243 whitetails and a couple new T3's. I tend to lean toward the 55 gr sierra blitz king over 46 gr of varget. they come out at about 3800 fps and most of these rifles now shoot well under an inch. Makes a great coyote gun. sako-tikka makes a quality product at an attractive price.