dchamp, here is the spread sheet for the BarnesTTX ...
My C.O.A.L with this bullet (160gr TTSX) is 3.160". I shoot it out of 3 different barrels, 1 Blaser, 1 Sako and 1 Remington 700. The Blaser R8 barrel is 3.306"- .146" jump. The Sako 85 Grizzly is 3.360"- .200" jump. And the Remington 700 is 3.270"- .110" jump. All shoot it well.
For a heavier bullet I would suggest trying the 220gr. Sierra Game King in front of some CFE223 powder. I've only shot it in my Blaser, C.O.A.L. 3.205", to the lands 3.260"- .o55" jump. I am getting around 243o+/- fps and it is accurate and has good precision.
Browningbbr, it is great to hear that your want to get a light load for your 8x57 JS l.I will definitely try it in my 8x57 JS Mauser if you succeed . In South Africa the 8x57 JS Mauser is not a well known rifle...the South African hunters tend to use /know/prefer the American calibers , the 300H&H Magnum and the .30-06 caliber .
It is only a few hunters who know about the German calibers who hunt and use them extensively.
My 8x57JS is a devastating caliber /round in walk and stalk hunts. I use 220 gn bullets at 2100f/s which gives an incredible hard hitting hunting bullet as well as an accurate load. The rifling twist is 1:9.54 , suitable for long heavy bullets ranges from 196gn to 225gn bullet weight .
I previously tried to get a good grouping with 150gn bullet but I did not succeeded . This is why I am curious to see if a 160 gn bullet will work in my rifle...
At what muzzle velocity do you shoot the 160gn bullets?
Thank you Browning bbr, this info is much appreciated. I am awaiting bullets in 160 gn weight for my 8x57 Turkish Small ring Mauser...I will give feedback about the performance of these bullets.Gert,
PS: The pictures of my Mauser can be found under the post "Just-finished Mauser Project"