02-09-2023, 12:15 AM
Adj gas blocks can only restricted the gas port pressure, they can not increase barrel port pressure.. Adj gas blocks will leak gas by their design compared to a standard gas block..
The best way to verify an aligned gas port is with a bore scope, but we will assume it is correct.
We will assume the chamber is not tight and is good to go if a properly sized cartridge will fall out after pushing it in the chamber with a slight amount of force..
I was talking about the extractor rubber O-ring that come with some bolts. I have seen them cause malfunctions, especial in the 6.5 Grendel chamber. There can be too much extractor tension..
The best way to check the gas tube button is with a gas tube gauge. Cracked tubes can occur, but we will assume the tube is good to go being new. I will remove them so I can check all sides for cracks..
The best way to check the gas key is to do a reverse torque test of 30 Inch pounds. If the retaining screws are not torqued properly (57 to 58 inch pounds) they will come loose. The screws need to be oiled to get proper torque amount.. If a screw is broke, this will also find it..Be sure to check the gas key for any obstruction by inserting weed wacker line until through the gas key until it comes out into the carrier..
The best way to drill out the gas port is to check the port size with pin gauges and then gradually increase the port size until satisfaction. Be sure to insert a metal cleaning rod so you don't go too far and hit the opposing side of the bore across from the barrel gas port..I use chucking reamers as they bore a perfect hole..Many here on the forum have used drill bits with complete satisfaction..
Some bolt carriers are not gas efficient and don't have proper tolerances in their 3 bores.The bolt tail O.D. to boat tail bore I.D. in the carrier is the most important. The gas ring bore is also important for gas efficancy. The last is the shoulder bore that determines the bolt shoulder support tolerance..If you can find another known bolt carrier that is proven to test in your rifle, it can help a lot with diagnosing a gas problem.
I assume your gas tube is the proper length..
No need to tear your hair out lol, just take your time and do the process of elimination to find and fix your problem..
The best way to verify an aligned gas port is with a bore scope, but we will assume it is correct.
We will assume the chamber is not tight and is good to go if a properly sized cartridge will fall out after pushing it in the chamber with a slight amount of force..
I was talking about the extractor rubber O-ring that come with some bolts. I have seen them cause malfunctions, especial in the 6.5 Grendel chamber. There can be too much extractor tension..
The best way to check the gas tube button is with a gas tube gauge. Cracked tubes can occur, but we will assume the tube is good to go being new. I will remove them so I can check all sides for cracks..
The best way to check the gas key is to do a reverse torque test of 30 Inch pounds. If the retaining screws are not torqued properly (57 to 58 inch pounds) they will come loose. The screws need to be oiled to get proper torque amount.. If a screw is broke, this will also find it..Be sure to check the gas key for any obstruction by inserting weed wacker line until through the gas key until it comes out into the carrier..
The best way to drill out the gas port is to check the port size with pin gauges and then gradually increase the port size until satisfaction. Be sure to insert a metal cleaning rod so you don't go too far and hit the opposing side of the bore across from the barrel gas port..I use chucking reamers as they bore a perfect hole..Many here on the forum have used drill bits with complete satisfaction..
Some bolt carriers are not gas efficient and don't have proper tolerances in their 3 bores.The bolt tail O.D. to boat tail bore I.D. in the carrier is the most important. The gas ring bore is also important for gas efficancy. The last is the shoulder bore that determines the bolt shoulder support tolerance..If you can find another known bolt carrier that is proven to test in your rifle, it can help a lot with diagnosing a gas problem.
I assume your gas tube is the proper length..
No need to tear your hair out lol, just take your time and do the process of elimination to find and fix your problem..