rustybayonet Posted March 29, 2016 Share Posted March 29, 2016 (edited) Has anyone reloaded 7.62 rounds? I have noticed that the military brass holds 5 grains +/- less powder than a .308, should I start my load 5 grains less than I do for a .308? I have heard of people getting major gas leaks (over charge) in the primer area, by using the same charge from .308 in a 7.62 case. Edited March 29, 2016 by rustybayonet Link to comment Share on other sites More sharing options...
PKT1106 Posted March 29, 2016 Share Posted March 29, 2016 IIRC, 7.62x51 brass has thicker case walls, reducing the internal volume. I would suggest working up a load with the 7.62 to make sure you don't over charge or trade off the military stuff for commercial 308. Link to comment Share on other sites More sharing options...
thermobollocks Posted March 29, 2016 Share Posted March 29, 2016 Definitely work up. Unlike 5.56, 7.62 actually does have thicker case walls. Link to comment Share on other sites More sharing options...
RiggerJJ Posted March 30, 2016 Share Posted March 30, 2016 (edited) Work up, as suggested. I use 7.62 brass for long range accurate rounds. Get great performance from those rounds. And I use a mix of commercial brass for mouse fart close up rounds, different bullet and powder. jj Edited March 30, 2016 by RiggerJJ Link to comment Share on other sites More sharing options...
BeltFed Posted March 30, 2016 Share Posted March 30, 2016 As stated before both 7.62 and 5.56 NATO brass have thicker walls than commercial 308 Winchester and 223 Remington brass, so you need to work up slowly. I believe Speer makes or made a manual that has data for military brass. For bulk blasting practice ammo, I load for military brass since I have a big supply, and I hate surprises. Link to comment Share on other sites More sharing options...
FlashAndPoof Posted April 20, 2016 Share Posted April 20, 2016 Wait... 7.62 Nato brass have thicker walls than .308 Commercial brass?! And 5.56 brass is also thicker than 223 brass?? How have I never noticed this!?!? So does 5.56 and 7.62 offer more reloads per brass than the thinner commercial version? Link to comment Share on other sites More sharing options...
Triggerf16 Posted April 21, 2016 Share Posted April 21, 2016 Winchester .308 brass is 20 grains lighter than Lake City brass. Link to comment Share on other sites More sharing options...
rustybayonet Posted April 23, 2016 Author Share Posted April 23, 2016 Winchester .308 brass is 20 grains lighter than Lake City brass. The differance I spoke of was volume, not weight. Sorry. Link to comment Share on other sites More sharing options...
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