As for Zacharys' comment about none of his rifle shootign over 1" 3 shot groups. Well either he is very, very, lucky or simply dreaming
Luck has nothing to do with 1" group's and in many cases, neither does dreaming. Most people with rifles like that won't accept less. They shoot a great deal, probally handload and work on the mechanics of good shooting, ie breath control, body position, trigger conrtol, ect.
I like that kind of comitment to shooting. Get that kind of guy within reasonable range of an animal and the conclussion is usually "quick and humane". I say that as that type of guy usually understands how to use what he has also, he's the guy that makes whatever he's using, "ole death and distruction".
One of the things he realizes is that no matter his own ability, it's of little value without the knowledge of his rifle that he learns at the bench. And his ability is a reflection of his rifles ability.
You can learn to shoot well from field positions but they'll never tell you what your rifle is capabile of. You can have the best shooting form in the world but it's useless if the rifle doesn't shoot and that can only be found on a solid bench using bags and good shooting form.
The bottom line in this discussion is that the author doesn't really know if it's his rifle or his self! In either case, he's got a rifle and ammo that will work well at about ,,,,,well,,,,,,, who really knows, we don't know what either is really capabile of.
I too don't own a rifle that won't put three good handloads into 1" at 100 yds. I've had some, but not for long!