Hi all,
I've got a brand new hw80 (.25) that i immediately short stroked and installed a .20 barrel on. (Didn't even shoot the .25 barrel, just went right into tune mode.) I was hoping to achieve 12fpe and i did by cutting a few coils and adding the TBT short stroke kit. It cocks super easy, and is smooth shooter. The .20 barrel wasn't very accurate with the 3 different pellets i was able to find (at 12 fpe anyway) so i've since switched it over to a .177 barrel. It didn't take long to find a couple pellets that are accurate. Here's the issue:
The breach block on the .25 and .20 barrels measure 18.64 mm in width, and they fit in between the (not sure of the terminology here) forks of the compression tube without any issue. The .177 barrel though measures 18.84 mm and i can only fit one of the thin pivot bolt washers in. I've installed it with only one washer just to check operation and accuracy. I've oiled the breach block lightly and it doesn't seem to be galling where the one washer is missing. What i had noticed when i first removed the .25 barrel is that the forks from the compression tube seemed to bent in at the side closer to the compression tube (IE probably pinched to fit the 18.64mm .25 barrel), though i never measured it.
So what should i do?
Continue shooting it and monitor for galling?
Attempt to open the forks to make more room?
Mill the breach block on the .177 barrel to fit the forks better? (I don't really have the tools for this, it would mean a trip to a smith.)
Other options i'm not aware of?
Thanks in advance,
Ryan
I've got a brand new hw80 (.25) that i immediately short stroked and installed a .20 barrel on. (Didn't even shoot the .25 barrel, just went right into tune mode.) I was hoping to achieve 12fpe and i did by cutting a few coils and adding the TBT short stroke kit. It cocks super easy, and is smooth shooter. The .20 barrel wasn't very accurate with the 3 different pellets i was able to find (at 12 fpe anyway) so i've since switched it over to a .177 barrel. It didn't take long to find a couple pellets that are accurate. Here's the issue:
The breach block on the .25 and .20 barrels measure 18.64 mm in width, and they fit in between the (not sure of the terminology here) forks of the compression tube without any issue. The .177 barrel though measures 18.84 mm and i can only fit one of the thin pivot bolt washers in. I've installed it with only one washer just to check operation and accuracy. I've oiled the breach block lightly and it doesn't seem to be galling where the one washer is missing. What i had noticed when i first removed the .25 barrel is that the forks from the compression tube seemed to bent in at the side closer to the compression tube (IE probably pinched to fit the 18.64mm .25 barrel), though i never measured it.
So what should i do?
Continue shooting it and monitor for galling?
Attempt to open the forks to make more room?
Mill the breach block on the .177 barrel to fit the forks better? (I don't really have the tools for this, it would mean a trip to a smith.)
Other options i'm not aware of?
Thanks in advance,
Ryan