Gamo Coyote/Urban BSA buccaneer transfer port question??

[Trucker3573]

I believe the stock transfer port in the 22 cal is 4mm??  I see online you can order a 5mm transfer port. Just curious if anyone has done that to their coyote? If so did you see much of a power gain?  Thinking of buying one to experiment with on mine.

[sicumj]

I drilled out my 25 Buccaneer and gained about 50 fps.  I think it had  .190 in it and I went over .20 maybe .210.  I was able to get 16 turns on the hammer spring which upped the velocity (combined) from 720 fps to just under 800.

[Trucker3573]

Nice.  Thanks

[3crows]

Is there a link to the large Gamo TP?

I could drill mine out but then I could not return it to stock. The larger TP might help me get a stable 26 fpe from the little Urban hosp smacker .

Thanks in advance.

[Trucker3573]

Is there a link to the large Gamo TP?

I could drill mine out but then I could not return it to stock. The larger TP might help me get a stable 26 fpe from the little Urban hosp smacker .

Thanks in advance.

https://www.ebay.com/itm/174779860068?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=dHKVK41HRLi&sssrc=2349624&ssuid=eNIytb_4QYS&var=474411611857&widget_ver=artemis&media=COPY

[rkr]

BSA barrel port is still 4.0mm so you need to open it up as well. You can do 60 fpe with 4.5mm port so how much power do you need?

[EdinGa]

Is there a link to the large Gamo TP?

I could drill mine out but then I could not return it to stock. The larger TP might help me get a stable 26 fpe from the little Urban hosp smacker .

Thanks in advance.

Mine runs around 28 fpe with my cast 30 grain slugs. It isn't a quiet little stealth gun at that power level though.

[WildCJ5]

Is there a link to the large Gamo TP?

I could drill mine out but then I could not return it to stock. The larger TP might help me get a stable 26 fpe from the little Urban hosp smacker .

Thanks in advance.

You can always jbweld the tp and re-drill back to the original size. I have filled and drilled a few to lower the power on some guns.