I had time to test my new guide briefly. It was my first attempt at making one. I think I may have made it a bit too tight. More line 0.02" than 0.002"
It was quite tight to get the spring on for assembly. I was thinking I can always make it smaller, but I'm not sure if I will be able to get the guide back out from the spring in one piece.
This is the change different in fps before and after.
RWS Super Field 15.9 gr
Factory guide = 825 fps (24.0 fpe)
Custom guide = 770 fps (20.9 fpe)
Is there any problem using it like this (other than the loss of power)? I wondered if the spring might be putting too much pulling force on the guide and break it.
The up side is the twang is gone, it must be quieter now as I can here the pellet flying through the air now
, where as before that was mostly masked by the twang.
I haven't had time to test for fps spread and accuracy yet.