07-08-2018, 11:44 PM
Thanks to everyone who has responded. Sorry for getting worked up but man I was worried there for a few. This was the first shots out of the 12.7 and it had me concerned.
Good news, I went back out today and tested the Magnetron and I believe it was a config issue. The sensitivity was as high as it could get, I reduced it to normal. I also worked on reducing the spacing between projectile path and bayonet as I noticed the first time around it was a little larger than it should have been, maybe 1/2 inch. I then retested at arms length and empty mag well. The results were a lot more predicable.
For the first shot out of the 12.7 Faxon I used the 123 SST and only shot it once for comparison purposes, it went 2157 fps. After the change in chrony readings I felt a little better. The 123 gr AG 2 shot average was 2187 FPS. The AG still did show ejector marks even though it was about 30 fps difference. I also tested a different BCG, a fail zero and it still had the ejector mark. I believe I will check head spacing of both the SST and AG and see if there is a difference.
For the 18" Odin Works, one shot each, 2501 fps for 123 AG and 2424 fps for the 123 SST.
Sorry for crying wolf but it had me worried after seeing the ejector mark and the chrony speeds.
Shooting the AG may not be worth the risk in the 12.7, it is a little hot. I am working on a plan for load development now. The 12.7 will be hunting only. I am looking at the 100 Nosler BT and 123 SST, I'll see which one shots the best.
Good news, I went back out today and tested the Magnetron and I believe it was a config issue. The sensitivity was as high as it could get, I reduced it to normal. I also worked on reducing the spacing between projectile path and bayonet as I noticed the first time around it was a little larger than it should have been, maybe 1/2 inch. I then retested at arms length and empty mag well. The results were a lot more predicable.
For the first shot out of the 12.7 Faxon I used the 123 SST and only shot it once for comparison purposes, it went 2157 fps. After the change in chrony readings I felt a little better. The 123 gr AG 2 shot average was 2187 FPS. The AG still did show ejector marks even though it was about 30 fps difference. I also tested a different BCG, a fail zero and it still had the ejector mark. I believe I will check head spacing of both the SST and AG and see if there is a difference.
For the 18" Odin Works, one shot each, 2501 fps for 123 AG and 2424 fps for the 123 SST.
Sorry for crying wolf but it had me worried after seeing the ejector mark and the chrony speeds.
Shooting the AG may not be worth the risk in the 12.7, it is a little hot. I am working on a plan for load development now. The 12.7 will be hunting only. I am looking at the 100 Nosler BT and 123 SST, I'll see which one shots the best.