11-11-2021, 11:10 PM
LRG, I also had an experience with mysteriously disappearing 95 gr TMKs. I was using them as a match load in my 18" 243 LBC with an 8 twist (a 3 groove polygonal BHW) and running them at 2670. They were extremely accurate but when the wind picked up, they started disappearing in matches past 600 yards. Neither I nor the RO could see anything - no target impact and no splash from a miss. It didn't matter which way the wind was blowing and it didn't happen all of the time but it happened enough that I gave up on them. Not great for your scores in a hit to move on match! I took what ammo I had left to my local range with steel and they did fine at 440 yards but had noticably increased dispersion at 550 and my guess is that they weren't stable for some reason and started crapping out at around 500. I don't know if they began to tumble, helicopter, or both, but by the time they got past 600, they weren't flying like a bullet is supposed to. My remaining stash was happily sold in Gunbroker. With your velocity and twist, your probably putting on 20% more RPMs than I was and you likely have "sharper" lands.
#FJB