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222 Posts
I have five original flush choke tubes for my 391. I have not used them of late because I bought some after market extended tubes. Can anyone explain what the marks on these tubes mean.
1. ****
2. ***
3. **
4. *
5. P8 SK SP ( no stars )
1. ****
2. ***
3. **
4. *
5. P8 SK SP ( no stars )