Yep, efficient loading on a ss press requires better technique. Son't prime on the press, painfully slow. Use a hand priming tool. Do all the steps one at a time; size, then bell, then prime, then seat & crimp. If you use a powder measure, you can load 60-70rds of handgun per hour, but that is hauling butt. I still load my high powewr rifle stuff on a single stage even though I run two 550B for handgun ammo. I even have dies for some of my handgun stuff & load test batches on the ss press. It's just easier than setting up the 550B for 20rds.
"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".