looking for some load data on a new wildcat cartridge which is a 6.5 Grendel case necked up to .30 cal. The smith is going to contact the previous owner of the rifle to see what he used but considering the current powder situation I am not sure if I can duplicate it. If the previous owner used 4198 I am screwed, that stuff is rare as hens teeth at the moment
the bullet I will be using is the 115 Berger flat base
3 powders I have on hand that may work is 8208 XBR, CFE 223, and Tac. I am figuring that if I take the starting load for a normal 6.5 Grendel with a .264 diameter 115 gn bullet and reduce it 10% to 15% to account for the larger bearing surface of the .308 diameter bullet I should be in safe territory
Thoughts or Quickload data anyone ? Or suggestions for other powders that can be found ?
the bullet I will be using is the 115 Berger flat base
3 powders I have on hand that may work is 8208 XBR, CFE 223, and Tac. I am figuring that if I take the starting load for a normal 6.5 Grendel with a .264 diameter 115 gn bullet and reduce it 10% to 15% to account for the larger bearing surface of the .308 diameter bullet I should be in safe territory
Thoughts or Quickload data anyone ? Or suggestions for other powders that can be found ?