1) Can someone with a Rem 7400 tell me if your rifle is doing the following. With the magazine in, lock the action back. Place your hand and some upward pressure on the magazine and hit the action release button located on the magazine. The action will not cycle on my rifle in this situation. Does it cycle on yours?
2) How do I go about cleaning out the gas system?
This rifle was very abused. When I cleaned out the barrel it was so dirty. Lots of blue coming out of the barrel and just very dirty patches.
The problem that this rifle is having, second hand info, is that it jams on the second shot.
1. The way it works is the mag has a release buttom or lever. It pushes down the mag to let the action cycle. So pushing up hard is defeating your purpose.
2. Use compressed air and pipe cleaners to clean it out with the bolt locked back.
Lastly check to see if when you are tightening the forarm screw if you are putting pressure on the barrel. Way to see is, put the forarm on with no screw. Can you pull the front loose (where the screw goes in) or is the forarm sitting on the barrel gas port fitting? If there is no pressure on the barrel gas port then when you tighten the forarm screw you are lifting up the barrel and your shots will string.
Check out this report I did on it.
http://forum.hunting.net/asppg/tm.as...y=7400󜮋