I have a knight disc extreme stainless thumbhole with a Nikon prostaff 3x9x40 bdc scope and I just switched from hornady 300gr sst in ez load sabots to thompson center branded 240gr .45 cal i assume bullets in black mag express sabots, i also shoot 100gr of triple 7 pellets and i didnt shoot for groups but it was dead on once i got the bullets walked into the bullseye but only at 50 yds, i also have a new optima v2 that i sighted in today as well for wife and it had the same results, i was running a wet patch or 2 then dry patches after every 2 shot in both rifles, this was my first time ever running patches between shots because last year i shot 2 to check zero, then killed 2 does, then on shot no.5 i aimed for the heart on a good 8 ptr and hit him way high in the spine and way back. At 20yds or so. That was an eye opener for me