Hey guys,
I'm pretty new to this Semi-auto thing so I can use some of your knowledge and expertise on this one.
My situation is the following: I recently purchased a DPMS LR308 and after a short while with it I decided I wanted to convert it to 260REM. So I sent it to Krieger who installed 26" barrel (rem 260) and one of their gas blocks.
Yesterday I took it to the range to work up some loads and what I experienced was the following: I had about 4 jams in just about 40 rnds. that I took. A buddy of mine who is more knowledgeable of AR's advised that he felt it was undergassed due to the fact that the spent brass was being spit out rather weak (in his opinion) out of the receiver. I went through some threads advising to check for leakage and what I found is what I believe may or may not be the problem so hence this thread.
I observed a build up of carbon on the outside of the barrel, around the the gas block, aswell as a light build up on the gas block and gas tube where the two meet. Does this sound like the possible problem?
Unfortunately since the barrel install this is the second time I have to send the upper back to KRIEGER. The first time, just after receiving it, it was beating up my brass wayyyyyy to much so I sent it back. They held it there for almost two months and just sent it back last week with a new gas block and now this.
I'm pretty new to this Semi-auto thing so I can use some of your knowledge and expertise on this one.
My situation is the following: I recently purchased a DPMS LR308 and after a short while with it I decided I wanted to convert it to 260REM. So I sent it to Krieger who installed 26" barrel (rem 260) and one of their gas blocks.
Yesterday I took it to the range to work up some loads and what I experienced was the following: I had about 4 jams in just about 40 rnds. that I took. A buddy of mine who is more knowledgeable of AR's advised that he felt it was undergassed due to the fact that the spent brass was being spit out rather weak (in his opinion) out of the receiver. I went through some threads advising to check for leakage and what I found is what I believe may or may not be the problem so hence this thread.
I observed a build up of carbon on the outside of the barrel, around the the gas block, aswell as a light build up on the gas block and gas tube where the two meet. Does this sound like the possible problem?
Unfortunately since the barrel install this is the second time I have to send the upper back to KRIEGER. The first time, just after receiving it, it was beating up my brass wayyyyyy to much so I sent it back. They held it there for almost two months and just sent it back last week with a new gas block and now this.
