I'm reloading 136 Scenar-L, 41.4 H4350, with Peterson brass. I haven't measured my groups at distance but I have shot out to 1k. For matches the range is anywhere from 500-700yards. So sounds like better accuracy at distance?What ammo? What’s the farthest you’ve shot? Mine shot one hole at 100 but that wouldn’t translate past 500. Best group I ever shot at 1000 was 7.5 inch 5 shot group with 130 Berger Federal gmm. Mine had 2000 plus down it and I got a killer deal on a cf proof prefit so I’m trying it out.