Loading 308 hunting loads in Lake City 7.62 brass


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Lone_Gunman
November 11, 2007, 08:25 AM
Does anyone load 308 hunting loads in LC 7.62 brass?

If so, do you need to reduce the powder weight when using LC Brass?

What is your formula (bullet weight, powder, OAL), and what kind of velocities do you get?

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paperpuncher49
November 11, 2007, 11:23 AM
I have loaded a lot of LC brass, but in .223, not .308. I have not found it necessary to reduce loads with .223 LC cases, but have determined this through careful load work up. It goes without saying (and has been said countless times) that any time components are changed, one should start at the low end and work up. I always look for the most accurate load that does not exceed listed maximums, though I have found some loads well below listed maximums that I felt exhibited signs of high pressure. I don't know what you are hunting, but I have never tried to squeeze the absolute highest possible velocity out of any load. Why stress the firearm when it is not necessary? It has been my experience that a deer (or any other animal) is just as dead when its vitals have been hit by a projectile moving 2600 fps as when hit by one moving 3500 fps.

USSR
November 11, 2007, 02:18 PM
L_G,

41.5 to 42.0gr of IMR4895 in LC brass will propel a 165gr hunting bullet just fine.

Don

Dave R
November 11, 2007, 05:20 PM
Speer No 13 manual discusses this. They say you should reduce starting loads 5% or so because the brass is thicker than commercial .308 brass, so your case volume will be a little less.

USSR
November 11, 2007, 07:31 PM
I have not found it necessary to reduce loads with .223 LC cases...

pp49,

That's because, there's not much difference between .223 commercial brass and 5.56 military brass. Such is not the case with .308 and 7.62x51. 7.62x51 is much heavier than most commercial brass, hence it has a smaller case capacity and requires less powder than commercial brass.

Don

rc109a
November 11, 2007, 07:37 PM
LC brass is all I use for my 308. I have LC 74, 90, 92, and 98.
Bullet: Sierra GK 165g SP BT
Powder: Varget
Charge: 44g
Primer: WIN
OAL: 2.810
This is what works good through my Rem 700 5R. I recommend following previous advice about starting low and working up. I have reloaded some of this brass over 20 times with no problems (yes I do FL resizing). On the other hand my Winchester brass lasted only 4 times and then was trash. I hope this helps. I ahve other loads and if you want them PM me. I hope this helps...

Mark whiz
November 12, 2007, 04:52 PM
The old NRA standard for converting a commercial cartridge load to a Mil-spec cartridge is to reduce the powder by 12%. This proven pretty dang close on the loads I've chrono'd out of my M1A.

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