Ok, as I have posted several times before, I shoot a pile of 6.5x284. My current hunting load is 60grns of Retumbo (59.5 in new brass) in neck sized .292 bushing Lapua brass, with Fed215Ms and a 140 berger, base to tip 3.174" +- .003", .052" jump. Chronograph normally reads 3076 avg with an 8-10fps or so spread, yesterday same load averaged 2965, wtf? So I figure something is going on, so I did some drop testing at 300yrds today, 6.1" of drop with 3/8" vertical (half of that was likely me!) Anyway I use Shooter and Strelok ballistic apps and put the weather and sight-in conditions in to run it backwards to get my muzzle velocity, both apps are telling me my velocity has to be 3235 +-3fps to equal the drops, once I put it back in this way I ran the apps to 1000yrds, it said 19.4moa up from 100, the last time I shot it at a 1000yrds I was up 19.75moa and was a little over an inch high, so this is about right. I know the thing can't be moving that fast, so what's up with this, anyone else experience something like this? I'm trying to get them to match up, or do you think my chronograph is telling me horrible lies? All responses much appreciated.