GW45ACP

Sorry. Double-clicked.

I load on a 550B, but Winchester primers are the most reliable in my priming system. I use the Winchester small rifle primers in everything that uses a small primer, including handgun calibers. That is one area where I standardize to help with bulk purchases. I've been using Ramshot TAC for .223 and it work great. It's reasonably priced and it meters like water. W231 will work fine for all the pistol calibers you mentioned, but I've been using Ramshot True Blue for 5.7X28, 40S&W and 45ACP for the same reasons I use TAC. As mentioned, Powder Valley will be your best bet on powder and primers. I don't think you can beat Montana Gold's price on 55gr. FMJ's, but check with Powder Valley just in case if you are placing an order with them. I use my friend's 1x .223 brass as well as range pickup, but another site I have bookmarked is TopBrass.

Your plan is fine and everyone's really covered it, but when I load for my FNP-40, I start at about 1.130 with a lead 155 grainer. I remove the barrel use it as a case gauge. I then extended the length about .005 at at time until it I can't twist the round freely in the chamber. Usually 1.135 is not too long for anything I load and, as everyone says, the longer the better provided they fit in your mags. I got a reasonable deal on 1000 Berry's Plated 155 RNFP's and found that they like to be loaded at a max of about 1.137 in my barrel. Just load them until they don't chamber and then back them off a bit.

I started on an SDB for 9mm and it worked fine, but it was a little cramped and didn't have the leverage of the larger machines. I upgraded to a 550B because I planned on loading pistol and rifle calibers on the same machine. I've been using that same 550B for the past 15 years and I haven't had any problems with it that weren't user-related. I also prefer the manual indexing for the type of loading I do now. Now, if I were going to buy equipment to load 3000/month of one caliber and "some" of another, I'd get the 650 w/case feeder set up for the high volume round and a complete caliber conversion w/ powder measure for the lower volume round. After you gain experience with the process you'll decide if you need an additional press for the lower volume work and to have as a backup press. I do enjoy handloading, but 3000 rounds/month of the same caliber is pure monotony so the faster you can knock it out, the better.