Jason B
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Everything posted by Jason B
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Miltech restored it; They are sending a new spring.
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Hello All, I am a new member and have learned quite a bit already here; thank you. I acquired a JSAR that is in good condition that has been sported. The barrel is 19 inches with a Lyman ramp sight. There are no markings on the barrel bushings. The barrel has the markings "8 (one inch of space) 8" I field stripped the rifle, cleaned and oiled it properly. I have been firing m2 ball, and various hunting loads at 150 grain or less. The rifle either fails to extract or tears the case heads off. If I oil the cases, they may eject half the time. I also have case stretching. I polished the chamber to 1000 grit and installed a new extractor and I get the same results. If I shoot "factory lite" ammo, the rifle functions most of the time. I am waiting on headspace gauges. Any advice on this problem would be highly appreciated. Thank You, Jason
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Yes, It was restored back to milspec.
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Thanks Wayne, I will post when I get my new spring and try again.
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I just got my rifle back from a complete rebuild with new barrel after a few years. Instead of case head separation, it now throws empties 20 feet(not hyperbole) I measured the spring and it shows 10.5 inches. I am at a loss and looking for the goldilocks zone for ejection. With light recoil loads, it throws them 8 feet, with full power Remington or S&B, 20 feet. I think they put my rifle back together with a 70 year old main spring. The empties also have huge ejector dents in the rim making them useless. I am going to get a new spring and try again; if similar results, i was thinking of cutting off a couple of inches of the old spring and nesting it with the new one. Maybe act as a stiff buffer at the end of bolt travel
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Thanks metrotps, Do you think a new spring will remedy it? also the parkerization is very dark, almost black. The new stock and forend, and butt plate look good .
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I think they put my rifle back together with a 70 year old main spring. The empties also have huge ejector dents in the rim making them useless. I am going to get a new spring and try again; if similar results, i was thinking of cutting off a couple of inches of the old spring and nesting it with the new one. Maybe act as a stiff buffer at the end of bolt travel
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I just got my rifle back from a complete rebuild with new barrel after a few years. Instead of case head separation, it now throws empties 20 feet(not hyperbole) I measured the spring and it shows 10.5 inches. I am at a loss and looking for the goldilocks zone for ejection. With light recoil loads, it throws them 8 feet, with full power Remington or S&B, 20 feet. Jason
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Mr. Alpert and Mr. Scott, Thank you for taking the time to respond to this matter and set the course on what it will take to bring this rifle back. I deeply appreciate the knowledge you have shared. I have to digest all of this and make a plan. I will keep the board apprised. Best, Jason
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I received the head space gauges today. Go, No Go, and Field. Headspace test were conducted and it failed; The bolt will lock closed on all gauges. I believe I identified the problem of the separated case heads and jamming; excessive headspace. How do I deal with this? The barrel has great rifling. Thanks
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Tanker, Thank you for the input on the main spring and diagnosing the brass and the chamber; really good. I will post when I check headspace. out
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Hello Wayne Thanks, It will throw the empties about 5 feet with the lite loads, The full power loads will be thrown less.