09-11-2019, 12:04 AM
Thanks for the replies and links. I haven't had a chance to shoot since I posted. It was shooting ok with no problems after all that I have done. I hadn't thought about the ejector pin length/strength, I'll try trimming it a bit to see if that will get the eject pattern up towards 3 o'clock. The brass is just barely flat on the mouth, you have to look twice to notice it.
A5, this is the best shooting new barrel I have ever had. It has shot 3 different oem cartridges, and 3 different hand loads all within 1" of each other. I can't blame the barrel,,,yet.
LazyEngineer, I had not heard that about the ArComp. My load of 27.5 shoots very good, but feels significantly milder than the oem cartridges. I've thinking of "upping" it a little. I don't do any more bench shooting/testing than I have to because of the cost of ammo. I check zero now and then, and shoot a hog 2-4 times a month. I normally have the brass catcher installed, even on the bench unless I am checking to see where the brass is landing.
Vascar, I did clean and ran a home made "flapper" with 400 grit paper till the cases quit sticking. I have measured and checked the distance to the lands with my loads which are 123 sst. They touch the lands at 2.262 oal. I'm seating them 2.248
Lemonaid, I have always thought the gas was a bit weak. The changes I made barely made any noticeable difference. Drilled the port to .096 (it was .094), put the AGB (and new tube) on and had it as far as wide open. Seemed to be even weaker.
Put the original GB back on with a tad of blue loctite.
Cleaned and lubed the bolt. The rings look good, gaps not aligned. No sign of significant leakage around the GB or the key. When I took the GB's off, there was a faint carbon (or oil) ring centered almost perfectly on the port. ????
Thanks again for the replies. I'll report back when I get the extractor & kit, but that still doesn't change the gas situation. I'll keep on Keeping on.
A5, this is the best shooting new barrel I have ever had. It has shot 3 different oem cartridges, and 3 different hand loads all within 1" of each other. I can't blame the barrel,,,yet.
LazyEngineer, I had not heard that about the ArComp. My load of 27.5 shoots very good, but feels significantly milder than the oem cartridges. I've thinking of "upping" it a little. I don't do any more bench shooting/testing than I have to because of the cost of ammo. I check zero now and then, and shoot a hog 2-4 times a month. I normally have the brass catcher installed, even on the bench unless I am checking to see where the brass is landing.
Vascar, I did clean and ran a home made "flapper" with 400 grit paper till the cases quit sticking. I have measured and checked the distance to the lands with my loads which are 123 sst. They touch the lands at 2.262 oal. I'm seating them 2.248
Lemonaid, I have always thought the gas was a bit weak. The changes I made barely made any noticeable difference. Drilled the port to .096 (it was .094), put the AGB (and new tube) on and had it as far as wide open. Seemed to be even weaker.
Put the original GB back on with a tad of blue loctite.
Cleaned and lubed the bolt. The rings look good, gaps not aligned. No sign of significant leakage around the GB or the key. When I took the GB's off, there was a faint carbon (or oil) ring centered almost perfectly on the port. ????
Thanks again for the replies. I'll report back when I get the extractor & kit, but that still doesn't change the gas situation. I'll keep on Keeping on.