I've got an SS/laminate Omega with a Elite 3-9x40 bore sighted it went out an shot it at 50yds with 2pellets of 777 and 250grain powerbelts 1st shot just below bull, backed target out to 100yds an sighted in with powerbelts. Tried both powerbelts an hornady sst 250grain and was cutting holes, hornady had a little better grouping but they do get hard to load, easy fix with a spit patch. I mark my ram rod for 2 or 3 pellets just to make sure bullet is seated tight.