How do you like the Unitek for the powder measure? I have been eyeballing one for my 550B for ever. It gets the most caliber changes so I think it would be more beneficial. My 650 pretty much loads one or two diff 45acp loads, that's it. I wish the 550B had grease fittings.
"Given adequate penetration, a larger diameter bullet will have an edge in wounding effectiveness. It will damage a blood vessel the smaller projectile barely misses. The larger permanent cavity may lead to faster blood loss. Although such an edge clearly exists, its significance cannot be quantified".