Quote Originally Posted by eyebull View Post
More for very fussy barrels or vintage guns tbh. Or if you think you can outshoot quality factory ammo in a modern barrel and feel you need that extra Edge.
Other than that the old adage about fishing tackle shops comes to mind - all those fancy gadgets are for catching fishermen, not fish!
If you put a mike onto "quality factory ammo", you may well be surprised at the variations in dimensions from what it says on the tin. How much those differences make to accuracy, I'll leave to others to speculate.