I would think the left/right could change for sure. I have it change based on different powder charges in supersonics and if you're not spinning the bullet fast enough to stabilise it properly you could end up all over the shop too. I imagine the accuracy will be pretty awful.
Plus projectiles aren't designed to open up at 1000fps or less. You might have a hard time killing an animal with that.
If you think about how much you have to compensate with subs in a 22 it's going to be no different for a 308. Being bang on at 50 could mean you miss an animal at 100.
It'd be fun to play with though. Whatever you do make sure you have something to hold the powder against the primer or you'll blow yourself up!
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