The Firearms Forum - Gun Community - View Single Post - 6.8spc -compressing powder

.308 shooter · 10-06-2012, 10:00 AM

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.

PLEASE HELP!!!!!

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.

10-06-2012, 10:00 AM	#1
.308 shooter V.I.P. Member Join Date: May 2008 Posts: 100	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. PLEASE HELP!!!!! 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 10:29 AM..