Zebidee

Different barrel lengths perhaps? I measured mine at 19.375 ins and not close the the factory spec.

NB looking at the series again, 11.6gr of N120 was pretty good too. NB this obvs creates higher pressures, knocking on the limits, so definitely don't start there, work up. Quickload reckons 11.6gr N120 would give me 3400fps, but NB NB NB that is at my longer load. Squash the bullet back to factory dimensions of 1.72OAL, you'll increase the velocities by c75fps, but you'll increase the pressures too. Not advised. Lets face it, the rabbit doesn't care whether its 3400 or 3475 fps anyway...

Hi there. just joined the forum. I was running up a load last year for my 17H. Tried Hogdon Lil Gun, Swiss Reloader RS 30 and Vit N120. Vit N120 gave me the best results. NB In my Anschutz, I found that Hornady Factory ammo was seating about 100 thou off the lands - relative to my Bisley 308 loads that is a country mile off - I normally run 308s at 20-25 thou. Best I could do in the 17H was seat them at c 30 thou off - seating the bullets any further forward in the case meant they wouldn't fit in the magazine any more. Best load was 10.8gr of N120, behind a 20gr Vmax, loaded to an OAL of 1.797 (-30 thou). Results in the diagram below and inches indicated on the paper target by white dots for comparison. Vertical spread - ok. horizontal dispersion c 1 inch - what can I say - my wind zero was off and it was gusty day on the range! NB Obviously don't just go with my load. Work up to it safely. Your rifle pressures will be different to mine.