I second the motion on the use of gas checks. One thing, and as I don't know what configuration your bullet has, but if it is a fairly straight sided ending in a round nose, try inserting it the bullet nose first into the muzzle of the rifle. If the nose is engraved by the rifling or is a snug fit, then the bullet should shoot well. I've noticed that bullets that are loose or a sloppy fit accuracy usually sucks big time. Since the powder maker is it's infinite wisdom no longer make SR4759 (thank you bean counters) I've gone to Accurate 5744 for my general cast bullet shooting. I reserve Unique for light gallery loads. I generally reserve 2400 for my .357 and .44 magnum loads.
Paul B.
