I wont accept a 1.5" group from a scoped rifle. Flat wont do it. I can hold a 3" 100 yard group with my iron sight Marlin 44 magnum, but rested and scoped it will shoot an inch or better. Its more accurate than I am. I don't take it anywhere that I may need to make more than a 100 yard shot simply because of trajectory. I cant tell 100 yards from 120 yards and there is 3 inches of drop between them. Misjudging distance and my inability to see could mean I'm off 6" or more with that rifle. I don't trust myself with it. I can hold a 3" group at 500 yards with my 243. I run a 200 yard zero with it. It's 1.5" high at 100 and 1.5" low at 265 yards. Its literally point and click. I recently busted a coyote at 380 yards across a hay field with that rifle. I shoot 22LR silhouette matches which are off hand with an open sight Henry and with a scoped Ruger American Rimfire Target rifle. I have shot 37 out of 40 with it off hand. I can hold a 1" group at 50 yards with the Henry off hand. Bench rested the Ruger holds 3/8 or better at 50.
I guess the point is, I know what i can and can't do despite what the rifle will do. I have confidence in the rifles that I use, and I use them a lot. Most hunters don't put the time in to practice the little things like breathing and trigger discipline that can and will ultimately lead to misses and bad shots, or even bad shot placement. Old habits surface under stress and we revert to our muscle memory and our training. The first pig I shot out of a deer stand I made a perfect shot behind the shoulder. The problem was that on a pig, that's a gut shot. My range has a big steel pig set up at 100 yards and started practicing with my 22 aiming for the ear to retrain myself to shoot for the ear. My wife and I both shoot a 243. I have preached and preached for her to shoot deer in the neck so they fall right there. We were in the stand together after she shot a buck and another one came trotting out like he owned the place. took us completely off guard. I drew down on him real fast and instinctively put the cross hairs behind the shoulder and squeezed the trigger. Made a perfect shot, but the deer ran. I made my wife time 45 minutes and not let me out of the stand to make sure it had sufficient time to lay down so I wouldn't jump it. in my mind I can still see the deer in the scope and I knew i made a good shot at the time but it ate me alive. i was so worried that i made a bad shot. It happened so fast that if I didn't have time to think about the shot, I just made the shot. Things like that happen in the woods and you don't always have the perfect set up. But, knowing my rifle and knowing the load got me that deer. There is no substitute for trigger time and if i would have had my Marlin 44 I likely would have missed.