Originally Posted by Tyrsgodi
If I just set my LOA at the bench to the Lyman recommendation for the rifle, that should cover me, right?
However, sometimes one must seat a lighter bullet 'out' further to get the proper length. That can then allow a 'looseness' in the case mouth fit and consequently either push bullets deeper or pull the bullet entirely spilling powder into the magazine and action.
Using a light-for-caliber bullet (f'rinstance, 180 in a .44 mostanything) will give a muzzle velocity boost which seems 'enhancing'. However, with a lower sectional density, the bullet loses velocity quicker, resulting in lower downrange velocity, 'power' and greater bullet drop.
A light-for-caliber bullet can lower recoil. But not much.
None of this is to say one cannot use 180 bullets in .44 Magnum handguns or carbines. Just there's not much point.