Thanks MSP. Yeah I didn't tell ya, that my bench is set up at about 120 yards. Ever sence I got that tight group, I didn't touch my scope. The first box of ammo I used trying to sight in my Ultra, was Remington Core Lok's in 55 gr. These didn't do too bad. the second box of ammo, was Winchester 55gr white box. Trying to put these on paper was a nightmare, and ever since then I will only buy these to plink with. Unsurprisingly, my best groups are with the Winchester 45gr White Box. These are the ones that gave me that proud 1/8 and will always give me 1/2 to 3/4. These are the ones I finally used to get sighted in with. Like I said I think it's just me not the scope, my posture and form while shooting, stock placement on my shoulder, trigger pull, are all effecting me. And with the sand bags under the slinder reciever, it takes a lot of concentration.