308 win and 760 powder

trooper3385 · April 18, 2006, 08:26 PM

Has anyone reloaded for a .308 win using winchester 760 powder. Using the reloading data that I have, it fills the case over the mouth. So that can't be right. Even using the data for the minumum load fills it half way up the neck on the case. If anyone has any reloading data for the 308 using 760 powder, please let me know what your using. Or I guess if you have a good load using another powder let me know too. I've used 760 powder for reloading for a 243and 270 and have had excellent results. I've never reloaded for a 308. I just got this one a couple of weeks ago and I'm trying to find a good load for it. I'm going to try the 150 gr Hornady interbonds first and see how they work out.

**Unclenick** · April 18, 2006, 11:03 PM

748 is more usual in .308 and .223 both. 760 is a tad slow. I show it coming up to low target pressure levels in a standard case with a 175 grain Sierra MK just as the case hits 100% full. That means the load will actually be a bit compressed because 100% assumes the powder has flowed neatly around the boattail when it seats down on it, and that seldom really happens. So I think your load data is probably all for compressed loads. A new Winchester case will take a couple more grains to get to the same place and pressures, but you will still compress. I did spot one load that was only 44 grains under a 165 grain bullet, but expect it will be pretty sluggish. No velocity listed. Lighter bullet loads are listed, but light bullets loads with slow poweder can apparently cause secondary pressures spikes and are to be avoided IMHO.

Nick

atomictaco · April 19, 2006, 12:19 PM

I don't have any experience with 760, but I would check the data you are using and see if it lists the charge as a compressed load. Most, if not all, of my data sources have something to identify compressed loads. You might also try Varget for the 308, I have been using it for a couple of years with excellent results.

Rico567 · April 19, 2006, 12:41 PM

+1 on "atomictaco"'s choice of Varget.

shooter_john · April 19, 2006, 12:56 PM

I use 748 for .308, 42gr for Hornady 168gr AMAX to be exact. On that note, does anyone here have data for 748 in .270 and or 7mm Rem. Mag? Thanks in advance if you do!

TATER · April 20, 2006, 03:28 PM

I have never used W-760 for .308 Win.
But, I do have some data for 168 gr.

.308 Win
168 gr bullet
W-760 From 41 grains to 51 grains MAX
Rem. 9 1/2 Primer

April 18, 2006, 08:26 PM	#1
trooper3385 Senior Member Join Date: September 8, 2005 Location: South Texas Posts: 814	308 win and 760 powder Has anyone reloaded for a .308 win using winchester 760 powder. Using the reloading data that I have, it fills the case over the mouth. So that can't be right. Even using the data for the minumum load fills it half way up the neck on the case. If anyone has any reloading data for the 308 using 760 powder, please let me know what your using. Or I guess if you have a good load using another powder let me know too. I've used 760 powder for reloading for a 243and 270 and have had excellent results. I've never reloaded for a 308. I just got this one a couple of weeks ago and I'm trying to find a good load for it. I'm going to try the 150 gr Hornady interbonds first and see how they work out.

April 18, 2006, 11:03 PM	#2
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,743	748 is more usual in .308 and .223 both. 760 is a tad slow. I show it coming up to low target pressure levels in a standard case with a 175 grain Sierra MK just as the case hits 100% full. That means the load will actually be a bit compressed because 100% assumes the powder has flowed neatly around the boattail when it seats down on it, and that seldom really happens. So I think your load data is probably all for compressed loads. A new Winchester case will take a couple more grains to get to the same place and pressures, but you will still compress. I did spot one load that was only 44 grains under a 165 grain bullet, but expect it will be pretty sluggish. No velocity listed. Lighter bullet loads are listed, but light bullets loads with slow poweder can apparently cause secondary pressures spikes and are to be avoided IMHO. Nick __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle

April 19, 2006, 12:19 PM	#3
atomictaco Member Join Date: January 27, 2006 Location: Oak Ridge, TN Posts: 18	I don't have any experience with 760, but I would check the data you are using and see if it lists the charge as a compressed load. Most, if not all, of my data sources have something to identify compressed loads. You might also try Varget for the 308, I have been using it for a couple of years with excellent results.

April 19, 2006, 12:41 PM	#4
Rico567 Senior Member Join Date: October 19, 2005 Posts: 162	+1 on "atomictaco"'s choice of Varget.

April 19, 2006, 12:56 PM	#5
shooter_john Senior Member Join Date: December 12, 2002 Location: ALABAMA Posts: 1,472	I use 748 for .308, 42gr for Hornady 168gr AMAX to be exact. On that note, does anyone here have data for 748 in .270 and or 7mm Rem. Mag? Thanks in advance if you do!

April 20, 2006, 03:28 PM	#6
TATER Senior Member Join Date: November 19, 2002 Location: Mississippi Posts: 963	I have never used W-760 for .308 Win. But, I do have some data for 168 gr. .308 Win 168 gr bullet W-760 From 41 grains to 51 grains MAX Rem. 9 1/2 Primer