Dragon88
Member
I had my GSG 1911-22 and 15-22 at the range today. The 1911-22 began to have problems fully chambering rounds. It had approximately 400 rounds of M-22 through it since the last cleaning, so crud buildup should not have been an issue. Upon cleaning the gun later, I found a large buildup of fouling just ahead of the chamber in the bore. It was a mound of buildup at the six o'clock position. It was very hard and took about 20 minutes of scrubbing to remove. Long chunks of what looked like leading came out of the bore.
My 15-22 has been shooting M-22 exclusively since the last cleaning, about 700 rounds ago. I pulled that for a cleaning as well and found the same type of buildup. It was about half an inch in front of the chamber and quite noticeable when looking from either end of the barrel. This rifle has gone thousands of rounds of Fed bulk before with no cleaning and without similar buildup, so it seems to be unique to M-22. I would have disregarded it if it hadn't been an issue in two separate firearms. Again, this is very hard fouling, similar to leading, that caused chambering issues in the 1911-22 and could potentially contribute to an OOB in the 15-22 if it reached the chamber.
Anyone experienced similar fouling using M-22? I need to determine if this is a characteristic of this ammo before I buy more.
My 15-22 has been shooting M-22 exclusively since the last cleaning, about 700 rounds ago. I pulled that for a cleaning as well and found the same type of buildup. It was about half an inch in front of the chamber and quite noticeable when looking from either end of the barrel. This rifle has gone thousands of rounds of Fed bulk before with no cleaning and without similar buildup, so it seems to be unique to M-22. I would have disregarded it if it hadn't been an issue in two separate firearms. Again, this is very hard fouling, similar to leading, that caused chambering issues in the 1911-22 and could potentially contribute to an OOB in the 15-22 if it reached the chamber.
Anyone experienced similar fouling using M-22? I need to determine if this is a characteristic of this ammo before I buy more.