Sure, The powder is too slow to get enough in the case to make pressure before the bullet is out of the barrel. You got a decent group, but one group from a load with high SD's would not give me much confidence. If you don't plan to shoot very far the load could be great though.
Im perfectly aware that h1000 is a slower powder. I’m not saying I’m not running out and selling the load but I had the powder sitting around with no other use so wanted to actually try it rather than just taking everyone’s word for it….
Also I should not the middle shot had shit neck tension. Idk what happened on that round but I noticed it when I was loading and I said hell with it. Remove that shot and it’s a 5.8 SD…