Still does. The man that shoots one gun all the time is very proficient with it.
Its one reason I'm so good with my old 308 bolt... I shot it a LOT, know it inside and out etc..
Right now I"m getting awful good with a 300/221 wiht a can to its max distance....
The folks that swap around a lot, well I can and they can, but you are never quite as good typically
I can't say this is absolutely untrue, but having known a lot of "one gun guys" I've never seen one that was more than a passable shot. In my experience, guys that can really shoot have inevitably been guys that enjoy shooting and that means that they've invested in the shooting sports--primarily their time, but also arms, ammo and accessories.
I've never witnessed an exception to this, though I hear/read about their proficiency all the time......
