Re: 20" 260
To me the 20"er (mine is a Sendero contour) is perfect with an 8" can its a 28" overall length which is managable. My 7saum has a 28" barrel and when you put a can on too its too much, to me the 20" is perfect. Dumped a spike elk this year with a berger vld 120gr bullet out of this 260, while he was running made him really sick when I broke his front shoulder then put another one in him to seal the deal. Swinging the 20" made the shot a piece of cake. This gun also killed 6 Speed Goats in WY, shots out to 514yards which was a chip shot for this rifle.
I put 900rnd threw this gun the first 2months of its life shooting PDogs with 95gr VMaxes out of an 1:8twist kreiger, I havent been very nice to this barrel. IMO I will always have a 20" 260rem, and when I finally wear the barrel out Ill put the same length back on it, to me its a perfect setup.