Re: What are your .260 Rem loads?
h4350 is good powder for the 260, but beware that it varies in performance quite a bit lot to lot. Don't use others grain loads as much indication, work your way up. Anything much above 2800 fps over a 140 grain bullet starts showing signs of pressure for me, regardless of the grain amount. fps is a better indicator. I couldn't load as many grains as the hodgdon website shows even though I'm getting more fps.
I'm now on a new 8 lb jug lot and I had to up my grains by .5gr or so to get the fps I had with the previous lot.
YMMV