6.8spc -compressing powder
I'm just now working up loads for my 6.8spc.-- 1/10.5 twist 16".
This will be used strictly for hunting whitetail, but need decent loads for accuracy in the field.
120gr Hornady SST. They didn't list anything for this round so I called and got the information.
Recommended 8208XBR... Min=24.1@2000fps. Max=28.3@2400fps (they were using a 1/10twist)
I'm starting at 26gr and working up to 27.5gr...
PROBLEM: At 26.5 grains, I can hear the powder "crunch" compress when seating the bullet.
What problems will this cause? I don't want to go any higher without knowing the consequences. I thought I read here one time the compressing powder is not a good idea.
Edited.. The "crunch"/ compression is at the end of stroke while seating the bullet- maybe at the 75%-80% mark. The Hornady manual states 6.8 shouldn't use more than a 110-115 grin bullet, but the Hornady says its at the edge but is fine as far as using the 120gr SST.
Last edited by .308 shooter; 10-06-2012 at 11:29 AM..