I just went through a box of Hornady 168g Match bullets. The lightest I found was 167.40 GN and the heaviest 168.30 GN. That's quite a bit of difference. The lengths were from 1.214" to 1.220". A previous lot of the same part number almost all at 1.234". I think I'm going to have to buy in quanities of 500 at a time and sort them. Out of 100, I found 13 either 168.00 to 168.02 GN. 39 more between 167.90 to 168.10 and 14 more over 168.10.
It would be nice if the factory could sort them ahead of time by a machine and sell them based on weight. Maybe in 1/10 GN lots. I'm sure 9/10ths of grain has to show up to some degree downrange.
I want to try some Alco bullets later on this year. Pricey but may be worth it for some longer range shooting.
That's a good question. My thinking is that a copper jacketed bullet really doesn't lose much copper weight traveling down a barrel. I do have a .45 ACP FMJ round nose bullet laying here that I found somewhere at the range. The little guy is actually in pretty good shape all things considered. Has a few small minor dings and the pronounced rifling marks in it. The bullet weighs 228.9 grains. The problem is I really don't know what it weighed in at before it took its little flight. I have some spent rifle rounds around here somewhere my son collected one day at the range when he was a kid, today he is 34 with kids of his own. If I can find that little jar I could weigh a few. I know some were 168 grain SMK as they were mine. The kid dug them out of the dirt mound behind my target.After loosing an unknown amount of copper jacket as the bullet travelers down the barrel, will anyone ever know the true weight of a flying bullet?
Ken