I agree and would add one more, I do load for the length of my pistol chambers because different manufacturers definitely use different chamber lengths and sizes. I have seen people post trying to resolve a FTF issue and get a lot of ejector or extractor spring responses and this is in particular to the CZ Pistols in 9mm and .45 ACP, a lot of times it turns out that their OACL was just too long for the chamber and CZ are kind of known for that. Not knockin CZ, I own one and my handloads are made for it's chamber and I have had no malfunctions of any kind. Unfortunately, at the expense of others who were not aware. Smith auto chambers can also be on the short side in 9mm. Powder selection is only behind bullet selection on my priorty list!