LRRPF52 Wrote:I talked with Frank today for well over an hour. He's an OEM BCG manufacturer, and has been making AR15 critical parts for a long time for several different companies. He said they made a run of 7.62x39 Bolts a while ago, with a deeper bolt face depth, and a different extractor that were independently tested in high-volume and found to be durable over the long-term.
I was expecting an up-and-coming small shop, but was pleasantly surprised to learn more about their capabilities and industry history. I actually think that the stars are aligning somehow, and that this could be a great source for Grendel bolts.
I talkeed to Frank today too and had been talking to him months ago about bolt carriers. As you said he has big deliveries and our needs he wants to help out. He is willing to make the run and put some on the shelf and help out any of these other manufactures who need the 6.5 Type II bolts. It's just an upfront expense and he doesn't want any money from us, just wants to make sure others don't do the same think he is going to do. So that being said, he will let us know Monday as to what the company will do.
He did log onto the forum and read everyone's comments and concerns. I asked him to sign up so if your reading this just join in on the fun Frank....
One thing was told to me is the material used on the enhanced bolts is 9310 which is harder/stronger than the Carpenter 158 used on other carrier parts and less powerful cartridges. Due to the Grendel pressures of 50,000psi and people hand-loading a hot load, the bolt needs to be rated a little higher, 62,000psi or so. That is why the Carpenter 158 had issues and the "Enhanced Bolt" was made. I am pretty sure the main difference was the material, 9310.
If someone know's exactly the specs. for the material used on the Grendel Bolts, please confirm what I said is correct. Frank is willing to use what ever material we need.
LOG ON FRANK.....