11-18-2013, 03:50 AM
Sorry to keep this thread rolling, this newbie still has questions.
I was so impressed their first Grendel bolt I bought from AR Performance, I ordered a spare. They fit an Armalite barrel extension perfectly...like a glove. Very nice bolt design, and super manufacturing quality.
My AR Performance super bolts measure a .130" face depth. So, I chambered two custom barrels using bolts from AR Performance. Both are head spaced for the AR performance bolt +.001". Then I bought two more .264 Grendel barrels less bolts.
I have 400 rounds on the first ARP bolt and it looks perfect. Rifle functions perfectly with both Hornaday and Lapua brass.
Now compared to a Sota 7.62 or a standard 5.56 we know they both measure .125" bolt face depth.
The 7.62 x 39 bolts I have here, are no way near as good dimensionally as the AR Performance piece. I cannot speak to materials or heat treating, but it is very discouraging to hear that they will no longer be available from AR Performance.
Two questions:
1. Woohoo, where do I get an exact replacement extractor?
2. Woohoo, will anyone's bolt headspace correctly to my barrels that were made using your bolts?
You say the 7.62 x 39 will work in a pinch, well if it does, I dont see it working for very long....
I was so impressed their first Grendel bolt I bought from AR Performance, I ordered a spare. They fit an Armalite barrel extension perfectly...like a glove. Very nice bolt design, and super manufacturing quality.
My AR Performance super bolts measure a .130" face depth. So, I chambered two custom barrels using bolts from AR Performance. Both are head spaced for the AR performance bolt +.001". Then I bought two more .264 Grendel barrels less bolts.
I have 400 rounds on the first ARP bolt and it looks perfect. Rifle functions perfectly with both Hornaday and Lapua brass.
Now compared to a Sota 7.62 or a standard 5.56 we know they both measure .125" bolt face depth.
The 7.62 x 39 bolts I have here, are no way near as good dimensionally as the AR Performance piece. I cannot speak to materials or heat treating, but it is very discouraging to hear that they will no longer be available from AR Performance.
Two questions:
1. Woohoo, where do I get an exact replacement extractor?
2. Woohoo, will anyone's bolt headspace correctly to my barrels that were made using your bolts?
You say the 7.62 x 39 will work in a pinch, well if it does, I dont see it working for very long....