This is not about how some bullet works at given terminal velocity. It's about what the terminal velocity is. That's why I say like for like. Regarding the velocity, ballistics won't lie (much). Not going to repeat previous posts, please refer to them if needed.
Secondhand rather than a reliable source then. The figure I’ve most commonly seen quoted for all Barnes’ bullets is 2200 fps.
Don’t take it personally mate. Terminal performance, which is what matters in my view, is difficult to establish or test for. Of course you can calculate energy and speed but that’s not the same thing as bullet construction is key and there are many variables. However, you shoot whatever you wish at whatever speed you like mate. I’ve found terminal performance is best tested by actual experience with live animals. Just saying that’s all.
Your sources are none the better. Actually worse, if you believe all Barnes or even all TTSX are the same. Furthermore, you confuse manufacturer claimed expansion threshold with the higher velocity that has 200-300fps "comfortability margin" added. This margin is also suggested by Barnes technical support, if you believe those internet rumours...
Your example has two flaws.
Some fast muzzle velocity for the old venerable .308 you have mate impressive! about 200fps more than I ever achieved but in fairness I then went to the dark side 6.5mmm cal ..... gulp!
That was my point, all the information action I have is secondhand internet chatter, much like yourself - not confirmed by the manufacturer.
That wasn’t my data, I chose Barnes’ data for a fair comparison, they had 4 or 5 loads reaching that velocity though.
It is my view that you can tie yourself in knots with quickload and predicted velocities and expansion speeds. That's because I have done exactly that. Several years ago I stopped using quickload as empirical testing is so much easier more fun and more accurate. I load so my bullets retains roughly 2200fps at the maximum range I will shoot deer which is about 450m, and I stick with the same load and bullets so I can learn and trust them. I practise as much as I am able and shoot a fair few deer. Perhaps that's all to simple but it works for me.
The load data is Barnes’ so if it’s all over pressure you’d best take it up with them. Double based ball powders help get the best out of lighter bullets in .308.
Interesting. I've been using Geco Zero, 160 odd grain, shot 2 reds with one shot, and the second exit wound was thumbnail size.
I can't believe that! Who doesn't like a bogoff?Haha wait for it you might regret admitting on SD you shot two deer with one shot some disapproval might be expected
I don't use any of the TTSXs. The bullets I use, I've shot to wetpack at different (downloaded) velocities in the extent that I can believe the second and third hand data I've accumulated from external sources.
What’s wetpack?
In my case thoroughly soaked newspaper, packed to 2x4 frame. Occasionally combined with "obstacles" like plywood or actual bone. Kind of labour intensive but "free". Depending on bullet and your goal, only get 1-4 shots with centerfire per single packing.
sounds interesting photos??
Will be away for a week, I'll dig some up after that if I remember. Newspaper wetpack is not very photo friendly, results would be better with homogenous paper mass preferably light colour. You can judge / measure wound channel by eye while peeling away the stack, but photos are kind of flat and detail is lost since there's colors etc.
