Military rifles get shot a lot. Just how hard is the 6.8 spc on bolts. AR-15s chambered out for the 7.62x39 had a reputation for broken bolt lugs. I have read that the bolts are now tougher, but I have no idea as to what the cycle life is like in the 6.8 spc bolts.
I did see that article. One of my brothers sent it to me.
Happy days for sure are ahead for the 6.8 fans!
But still does anyone know the predicted cycle life with saami spec loads of the bolt. Like 5,000, 10,000, or 50,000 rounds. I believe there is a predicted life for the 5.56 bolt, but I do not know what it is.There are advanced bolts now. In a carbine gas they are hard in the middie and rifle easy peasy. This has been a 15 year process, we knew it was coming and are ready. There are already 6.8's being used in some special units and foreign services. Happy days for sure are ahead for the 6.8 fans!
7.62x39 has a very steep trajectory and part of the demands as I understand includes killing at longer ranges.They could save a lot of time and money by going with the 7.62X39 and never have any ammo problems
The specifications are incredible, four 6 mm barrels cut side by side within one steel block. New ammunition blocks fired by electromagnetic actuators that could theoretically give the weapon a firing rate of 250 rounds per second.
The Army is studying Grier’s gun and has ordered a military-grade prototype.
I saw that discussed elsewhere. A gun with four barrels fused together with incomplete chambers. The feeding device contains blocks with four partial chambers that each hold a shell and placed in the gun from a magazine like feeding device from the side.Meanwhile the Army is apparently also exploring other options...
Army might have found its new rifle in Colorado Springs garage