So essentially you're loading to 1.123 +/- .004. Even when sorting brass by head stamp, I get variations in case length, especially if it's range brass. If you trimmed all your pistol brass to the same length (.845), you'd probably shrink it a bit more, but I don't know anybody that does that. I figure as long as it functions in my pistol (the case gauge is my friend) and is accurate enough to shoot in USPSA, IDPA, Steel Challenge or 3 Gun, I'm good. If you're a bullseye shooter, it might be worth the extra effort.