Hi all. When I first got my .22 Streamline, accuracy was not great. Of course I tried to fix this by cleaning the barrel after every fill, and was somewhat shocked to find that it took around a dozen patches to remove all the lead from the barrel, even after putting only 50 rounds of JSBs through the barrel. Since cleaning the barrel didn't seem to help accuracy, I decided to not clean it at all, but use lightly lubed pellets to try to minimize any lead buildup. Sure enough, accuracy gradually improved to the point that 50 yard groups would consistently run between 0.4 and 0.6 inches.
After putting a couple more tins of lubed JSBs through the barrel, I noticed that accuracy was beginning to fall off, with groups now running about 0.75 inches. I decided to try cleaning the barrel again. This time it took only 3 patches to remove any lead accumulation, and accuracy was right back around 0.5 inches. I don't know whether it was the barrel being shot in or my use of lubed pellets that seemed to reduce lead buildup, but it was much less than when the gun was new. Going forward, I plan to clean the barrel after every couple tins of pellets, or after accuracy starts to fall off.
For those who are interested, I clean from the muzzle using a .177 cleaning rod with bore guide. I run oiled patches through until they come out clean, then follow with a dry patch. Works for me.
Chuck
After putting a couple more tins of lubed JSBs through the barrel, I noticed that accuracy was beginning to fall off, with groups now running about 0.75 inches. I decided to try cleaning the barrel again. This time it took only 3 patches to remove any lead accumulation, and accuracy was right back around 0.5 inches. I don't know whether it was the barrel being shot in or my use of lubed pellets that seemed to reduce lead buildup, but it was much less than when the gun was new. Going forward, I plan to clean the barrel after every couple tins of pellets, or after accuracy starts to fall off.
For those who are interested, I clean from the muzzle using a .177 cleaning rod with bore guide. I run oiled patches through until they come out clean, then follow with a dry patch. Works for me.
Chuck