You wonder if he meant, literally, "1mm", which would be .039", or "a mm" which is "a tiny amount" Either way, .039" longer than "factory" ammo tells us nothing... My reloads are more than that longer than some factory ammo.... also, the wording "One thing I did notice after I measured a new 45 fmj again my reload was that is was about a mm longer." could mean either his was longer, or the factory load was longer.... .... lots of unanswered questions.
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