I'm new enough to reloading that I'm certainly in no position to give advice, and one thing I am having to learn myself is what are realistic vs over zealous velocities. My main guns I'm loading at the moment are my 6.5 PRC Bergara HMR with a 26" barrel and my old 243 win Remington 600 recently rebarreled with a 20" barrel. In both guns, I've struggled with what should be the appropriate velocities for whatever load I'm trying. For my 243 in a 100gr Sierra Gameking, ~2815-2830 is my speed and in a 80gr TTSX 3130 fps is what I've settled on. For the TTSX, I even bought a box of Barnes ammo to shoot just to compare velocity to. My load was within 15 fps of the factory ammo but is giving me 3/4 moa vs 1.5 moa in the factory load. In my PRC, I'm still trying to figure it out with 156 Bergers. Using N560, I start seeing pressure signs about 2930, and my happy spot is just a tad over 2900fps. Weather permitting tomorrow, I'll be confirming some 140gr Accubond on top of H1000 at an expected 3010 fps velocity. It will probably be a little bit more since those velocities were on 75 degrees days and now the the temps are getting into the 90's here in S Louisiana. I've pushed velocities much higher thinking something was lacking in my reloads, but at the end of the day after thorough reflection and finding new information on my particular loads I have dialed my expectations back. I've come to realize there are guys on multiple forums with the knowledge, experience and firearms built to handle the higher pressure/velocities they tout and then there are the speed queens that think everything should shoot 3300fps and probably don't realize their speed brags are unrealistic and potentially dangerous. I'm not in the first category and don't want to put myself in the second. There are publications on the internet that give in-depth information on realistic velocities for given barrel lengths that have helped me understand better. One site that is fresh on my mind is Ballisticstudies.com. It has helped bring me back to earth. For some reason it seems like I recently read an article on Shooting Times also talking about barrel length and velocity, but my notebook isn't handy. Sorry if that ruffles anyone's feathers, that's just how I see it. Like I said earlier, I myself am learning so I'm always on the lookout for load data, and loading techniques from other folks' results good or bad to glean from.