Originally Posted by
Nomercy448
Hunting rifles should have a jump. Largely, that's to let you load and unload without worrying about pulling the bullet if it were jammed into the lands. It also gives you a bit of a "safety factor" for thermal versatility in a hunting rifle that might find itself hunting a very very cold morning (powder cooks off a lot slower) or hunting a mild and sunny afternoon. A load that's safe in cold weather when kissing the lands might blow your rifle apart on a 60degree day.
I could not agree more.
One small addition: mono-metal bullets (Barnes, etc.) need to be much further off of the lands than most.