I know there are a couple of threads talking about parts of this, but I'm opening it up for a general opinion.
One of my kids bought an FN Five-seveN for some reason, and has asked if I could load for it. I'm generally fine loading for the kids, because they're fine leaving the gun with me to do thorough testing to ensure I have a good, reliable load for it. But this one seems like a pain in the butt. I'd just say no, but with ammo for it currently in the $1.25-$1.75 per round range, I just can't stand to watch him burn money like that if I can do something about it.
I've read a bunch about how the cases are a pain, because they require the plastic coating to ensure cycle timing. I'm fine making him hand clean them, so that's not a problem for me.
Then I also read that the shoulder tends to expand, and they're rough to size, because you have to force the shoulder back into spec. But since it's a bottleneck case and it's only going to be fired from this one pistol, could I get away with neck sizing? Or will they not feed properly, so they have to be fully resized?
I also heard they're really sensitive to the load and seating depth, but that's fine because I'll stay well below the max load, and seat just short enough to feed and chamber. Probably start from the same j-word (Hornady V-Max), and base my seating around the factory length.
My Lyman book has load data for 35gr, 40gr, and 45gr, and I should be able to find a powder to do the trick. I think the only one listed that I have on hand is long shot, but I can probably find some #7, which was listed in all 3 weights.
What do you think? Too much trouble? Or if I can offload the case prep to him it might be worth it?
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