So, I know I know Ive read about this before but cant quite find it now, so Im hoping someone here has the answer. Building a load for my .308, got it shooting allright but I think it can get better. Right now, the widest spread between rounds is happening horizontally, its not outrageous, or even all that bad really, just hoping I can do some tuning and make it better. Shot today at 200 yards, no wind, off the bench with a rest and rear bag. I didnt have much time so I only shot 3 groups, letting the rifle settle down in between. 1st group was 1.78 horizontal, 1.508 vertical (5 rounds) 2nd was 2.092 horizontal, 2.17 vertical (10 rounds) 3rd was 1.246 horizontal, 1.004 vertical (5 rounds) Right now, Im fairly pleased with the load since this is the first time ive tried loading for the .308, its still a fairly new rifle (factory Savage 10FP in a HS stock), and Ive decided not to shoot targets under 200 yards unless I have to. Im thinking about tuning the charge itself a little bit, but Im just curious about horizontal stringing in general. Is it a result of seating depth or something along those lines or is it most likely just the loose nut behind the buttstock? Thanks for any input you may have!