I have had both the SBL and the Trapper. I liked being able to hold 6 rounds in the tube in the SBL vs 5 in the Trapper. On the flip side, I liked the skinner peep sight on the Trapper a lot more than the rail on the SBL.
I ended up keeping the SBL and put a Skinner Alaskan peep sight on it...
Federal ELD-X is the sweet spot for my 24" Ruger Hawkeye 7mm PRC. Runs right at 2990 fps.
They are getting exceptionally hard to find though. Seems like Federal halted production of their 7mm PRC ammo with the introduction of the 7BC.