I've been reloading 9mm for IDPA for about 6 months now. Basically I found a recipe that fed reliably and was accurate enough, then ran with it. But now that winter set in and I have time on my hands, I'm starting to wonder if I'm really missing out on some accuracy advantages or reduced recoil from a better load.
Lets assume for now that the gun, primer and bullet are fixed variables. I start with x grains of Powder A, find a good OAL, and the right crimp. But it's not making power factor, so I have to increase the charge weight. Does that change the OAL and crimp?
Or what if Powder A is out of stock and I have to switch to Powder B, does that change OAL and crimp?
What about the same thing with primers?
Or would it be better to check PF before messing with OAL and crimp?
How do you guys go about finding the best combinations without having a butt-load of extra components laying around? It's not like you can get 1/8 lb of powder and 50 bullets/primers at a time for a taste test. At some point, do you just say "good enough"? I'd much rather spend my time behind the trigger than the loading bench, but there will always be a nagging thought that I'm not using the most accurate ammo if I don't do a reasonable amount of testing.