Sounds more like a gas problem. Have you tried it with another trigger group?

Try this: With the rifle unloaded, squeeze the trigger and hold it down through the entire test. Pull the operating handle all the way to the rear and release it.
(The hammer is now cocked and held by the disconnector as it is when you're shooting, instead being held by the trigger hook. The disconnector holds the hammer lower during the forward motion of the bolt and carrier.)
Now pull the operating handle to the rear and let it go forward slowly. Does the carrier encounter resistance? Does it bind? If so, note where the carrier is when there's resistence or binding. Field strip the rifle and look for signs of wear at the point of resistance/binding. Check the relationship of the carrier to the hammer when the carrier is in the place where there is resistance/binding.

If there is nothing which is causing the problem with the receiver or the hammer, check to see if the piston is entering the gas block when the resistance /binding occurs.
If you still haven't found the problem put an empty magazine in the rifle and repeat the test, remembering to hold the trigger down. you're lookimg to see if there is any interference between the bolt and the magazine.

There will always be resistance when you draw the carrier back. The question is whether there is excessive resistance to the carrier going forward when the trigger is held back.
Without a picture it's not possible to tell if a burr on the hammer could be the cause.
If I were going to remove a burr I would use a fine file rather than a rotary tool but I'm sure one of those will work. Remove the burr and as little metal surrounding it as possible. If you take too much metal off the face of the hammer it won't strike the back of the bolt properly. That will cause the hammer and/or the back of the bolt to peen.

took a shot at grinding the hammer down a bit. I cant go to the range yet to test shoot it. But it does apear to be making contact with the firing pin. I will try and run some rounds through her in the next few days.

well it came with the trigger group installed allready. How do you polish it? When I has looking over the rifle I noticed a slight bur on the hammer i tried sanding it down so its smooth. I will take it to the range this week to see if it works.

ill look it over. thanx