Thread: Bulk ammo - seating depth?

Gidday guys - some time ago I bought a quantity of Lapua 223 FMJs. I've had great success pulling the FMJs and replacing these with Hornady 55s (the same weight as the FMJs) despite various internet sources naysaying this sort of practise. These shoot su MOA in two of my rifles which is good enough for most of my purposes.

Anyhoo I'm about out of them so managed to obtain some Belmont 223 stuff. It seems (from reading between the lines on various posts) that different batches of Belmont don't all shoot the same.

Given that the Belmont stuff already has a decent soft point projectile I was wondering if it might be possible to tune them to a particular rifle by experimenting with seating depth - anybody tried this? Any thoughts on a quick way of "lengthening " 400 rounds?