1st tests on a new rifle. Wanted a big bore easy boomer, short barrel rifle for chasing bears though the brush here in Pa.
I bought a 783 in .308 Winchester this spring and ordered a 45 Raptor chambered barrel from X-Caliber. 16.5" 1-20 ROT (Uses Shortened 308 brass and 460 S&W load data)
I Finally got around and assembled (with Headspace gauges) the Raptor barrel last week and looked up some load data for 260 grain bullets. Loaded with H110, OAL 2.175"
Today I was doing the barrel break-in and checking my handloads.
Shot #1 - No problem, Shot # 2 no extraction of fired case.
1st, I could not remove bolt from rifle. The extractor had slid to the outside of slot and I could see the detent ball beside it. Pushed in on detent ball and slid extractor back into position. This took some doing with the bolt in the rifle. I stopped, and examined the bolt while cleaning the barrel after 1st shot. (Be careful here that spring can propel that detent ball a fair distance if you let it.)
My first thought was maybe heavy grease not allowing the extractor to return to home position after sliding over to allow case rim into the bolt face. Cleaned thoroughly and reassembled.
Shot # 3, Good extraction, Shot #4, I had to reposition the extractor again after fishing the detent ball out of the magazine. Ugh! (Cleaned barrel again for break-in procedure) Looked bolt face over, could see no defects, obvious causes. Compared to another 783 I have that is Re-Barreled to a 6.5-06.
Shot #5, Good extraction, Shot 6, reassemble extractor again.
Cleaned barrel again, and decided to swap the bolt head from the long action (6.5-06) onto the Raptor barreled short action.
(Side note here, I really like how the dis-assembly and reassemble operation is much easier than on a model 700 Bolt)
Shot#7, shot #8, and Shot #9 Good extraction (I'm thinking I got it, there must be something wrong with original Bolt head for the short action) - Nope!
Shot #10, fish the detent ball out of the magazine and reassemble the extractor.
Scratching my head here! I measured the base of the brass (45 Raptor Brass from Arne)
.476/.477 just ahead of extractor groove on virgin brass. .481-.482 on the 10 fired cases.
Primers look flattened when compared to an un-fired cartridge. Do I have a high pressure issue?
Loads were 2x- 38.0 gr., 2x-38.5 gr., 2x-39.0 gr., 2x-39.5 gr., 2x- 40.0 gr.
Chrono speed: 2099, 2005,
2038, 2044,
2073, 2048,
2096, 2073,
and 2119, 2123.
I did some googling for extractor issues on Rem 783, Marlin X7 and Savage 10/110, all use this same bolt head/extractor design. No complaints found about extractors falling apart on recoil.
I did find one replacement kit for Savage 10/110 that lists a bit bigger extractor and detent ball. But again, no reference as a fix for extractor not staying in place.
Any thoughts as to what may be occurring to extractor that allows this?
I have 20 test loads for the 6.5-06 loaded for barrel break-in and testing. I hope to shoot tomorrow. Will see if condition exists on the Long action 783.
I bought a 783 in .308 Winchester this spring and ordered a 45 Raptor chambered barrel from X-Caliber. 16.5" 1-20 ROT (Uses Shortened 308 brass and 460 S&W load data)
I Finally got around and assembled (with Headspace gauges) the Raptor barrel last week and looked up some load data for 260 grain bullets. Loaded with H110, OAL 2.175"
Today I was doing the barrel break-in and checking my handloads.
Shot #1 - No problem, Shot # 2 no extraction of fired case.
1st, I could not remove bolt from rifle. The extractor had slid to the outside of slot and I could see the detent ball beside it. Pushed in on detent ball and slid extractor back into position. This took some doing with the bolt in the rifle. I stopped, and examined the bolt while cleaning the barrel after 1st shot. (Be careful here that spring can propel that detent ball a fair distance if you let it.)
My first thought was maybe heavy grease not allowing the extractor to return to home position after sliding over to allow case rim into the bolt face. Cleaned thoroughly and reassembled.
Shot # 3, Good extraction, Shot #4, I had to reposition the extractor again after fishing the detent ball out of the magazine. Ugh! (Cleaned barrel again for break-in procedure) Looked bolt face over, could see no defects, obvious causes. Compared to another 783 I have that is Re-Barreled to a 6.5-06.
Shot #5, Good extraction, Shot 6, reassemble extractor again.
Cleaned barrel again, and decided to swap the bolt head from the long action (6.5-06) onto the Raptor barreled short action.
(Side note here, I really like how the dis-assembly and reassemble operation is much easier than on a model 700 Bolt)
Shot#7, shot #8, and Shot #9 Good extraction (I'm thinking I got it, there must be something wrong with original Bolt head for the short action) - Nope!
Shot #10, fish the detent ball out of the magazine and reassemble the extractor.
Scratching my head here! I measured the base of the brass (45 Raptor Brass from Arne)
.476/.477 just ahead of extractor groove on virgin brass. .481-.482 on the 10 fired cases.
Primers look flattened when compared to an un-fired cartridge. Do I have a high pressure issue?
Loads were 2x- 38.0 gr., 2x-38.5 gr., 2x-39.0 gr., 2x-39.5 gr., 2x- 40.0 gr.
Chrono speed: 2099, 2005,
2038, 2044,
2073, 2048,
2096, 2073,
and 2119, 2123.
I did some googling for extractor issues on Rem 783, Marlin X7 and Savage 10/110, all use this same bolt head/extractor design. No complaints found about extractors falling apart on recoil.
I did find one replacement kit for Savage 10/110 that lists a bit bigger extractor and detent ball. But again, no reference as a fix for extractor not staying in place.
Any thoughts as to what may be occurring to extractor that allows this?
I have 20 test loads for the 6.5-06 loaded for barrel break-in and testing. I hope to shoot tomorrow. Will see if condition exists on the Long action 783.
