linx310
12-31-2010, 09:57 AM
I went shooting yesterday and took the KAC-556F out for the first time.
I discovered my KAC-556F does not like Wolf. It is either underpowered and not cycling the bolt back fully on full auto or the steel cases are rubbing against the magazine causing them to not feed fast enough for FA. The bolt would close on a empty chamber.
In semi it worked great with Wolf.
This sucks because I have a ton of this stuff. I am told an adjustable gas block may allow me to run wolf.
I then ran some brass cased stuff through it and it ran flawlessly.
I then took the KAC-556F and installed the 22lr conversion. We probably put about 600-700 rounds of 22lr through.
I still have some teething problems to work out though.
The blackdog magazines seem to have weak springs. On several of the magazines we would load them and they would not have enough pressure to bring the ammo up to the feed lips. And the magazines were not even fully loaded.
We found one magazine that worked decent.
The 22lr conversion I have is really old and worn out. It is so worn the charging handle barely even holds onto the bolt (the bolt is really worn).
The original stock metal magazine so worn out it would not feed at all. I may be able to fix it though by adjusting hte feed lips.
Problems we had:
1. Bolt would close on round hammer down with no primer strike. I may need a new recoil spring for the conversion.
2. FTF...round would get hung up trying to go into chamber. Not sure why this would happen. Would usually happen on first round of magazine. This may be related to a weak 22 conversion spring...it would only push the round in half way.
3. Stovepipes...maybe a weak ejector spring and worn out ejector? BTW when I had the problem with a round being chambered but not going off I would try closing the bolt and pulling it back to get the round to eject but the extractor just did not seem to get enough grip to pull it out.
Here is a video....probably put about 700 rounds of 22lr down range with it. We used 4 or 5 types of ammo to test it. I maybe got 4 or so magazine dumps with no problems.
http://www.youtube.com/watch?v=6zU9FM3QTUY
Note: I am the one in the brown jacket...the other two guys are new to FA and I forgot to explain to them they should not hold it by the magazine.
I discovered my KAC-556F does not like Wolf. It is either underpowered and not cycling the bolt back fully on full auto or the steel cases are rubbing against the magazine causing them to not feed fast enough for FA. The bolt would close on a empty chamber.
In semi it worked great with Wolf.
This sucks because I have a ton of this stuff. I am told an adjustable gas block may allow me to run wolf.
I then ran some brass cased stuff through it and it ran flawlessly.
I then took the KAC-556F and installed the 22lr conversion. We probably put about 600-700 rounds of 22lr through.
I still have some teething problems to work out though.
The blackdog magazines seem to have weak springs. On several of the magazines we would load them and they would not have enough pressure to bring the ammo up to the feed lips. And the magazines were not even fully loaded.
We found one magazine that worked decent.
The 22lr conversion I have is really old and worn out. It is so worn the charging handle barely even holds onto the bolt (the bolt is really worn).
The original stock metal magazine so worn out it would not feed at all. I may be able to fix it though by adjusting hte feed lips.
Problems we had:
1. Bolt would close on round hammer down with no primer strike. I may need a new recoil spring for the conversion.
2. FTF...round would get hung up trying to go into chamber. Not sure why this would happen. Would usually happen on first round of magazine. This may be related to a weak 22 conversion spring...it would only push the round in half way.
3. Stovepipes...maybe a weak ejector spring and worn out ejector? BTW when I had the problem with a round being chambered but not going off I would try closing the bolt and pulling it back to get the round to eject but the extractor just did not seem to get enough grip to pull it out.
Here is a video....probably put about 700 rounds of 22lr down range with it. We used 4 or 5 types of ammo to test it. I maybe got 4 or so magazine dumps with no problems.
http://www.youtube.com/watch?v=6zU9FM3QTUY
Note: I am the one in the brown jacket...the other two guys are new to FA and I forgot to explain to them they should not hold it by the magazine.