Hi all,
Sadly, having just been helped out amazingly with a leak on my 400 by the awesome guys that populate this forum, I am back! with another issue... )-: and seeing as it seems to be signifcantly different I have started a new thread.
Those of you who helped me before may remember that I had a slow leak and then ended up with fast one from a damaged oring on the reg. SO anyway no leak since then which is very cool - but then the not so cool thing that's happened since :
With the reg out to replace the oring I thought I would tighten the belville washers down a 1/4 turn to get the fps up a bit from 860 with 18gr JSB that it was set at. Having marked the starting point of the lock nut relative to the body and knurled brass ring with a sharpie, I first turned the locking nut without holding the allen key in but realised this was wrong so turned that back (don't know if that is significant) then did it again with the allen key holding the inside part still. I didn't have much time so quickly put a few shots over the chrono - result was all around 895-900, perfect I thought!
Then after trawling the forum for royale related stuff, got myself an HW100 reg tester that fits in the M6 stock bolt as suggested in a post by Wetherby - great tip thank you! This is where things went a bit different.
So I fitted the reg tester manometer in place of the stock bolt and started filling, now I've never tested a reg before but from my very basic understanding of it I expected the pressure on the gun's manometer and the reg tester's to increase together until the reg reached its pressure and then for the tester one to stop on the set pressure of the reg, which as I undersatnd should be somewhere asound the 140bar region... this may be completely wrong of course. Anyway what did happen was that the pressure showed by the reg tester carried on going up to 200bar at which point I thought something was not right.
I put everything back as normal and refilled to 200bar then tested the power, first shot came out at 920fps!!! then shot by shot the velocity dropped until it was well below 900 in about 30 shots... I removed the reg again and set it back to the original mark to see if my adjustment had messed things up and filled to 200bar, this time I recorded how the string went:
930
930
920
930
915
900
902
899
899
895
892
886
885
880
880
874
872
Then thought I would save my pellets...
Is the reg doing anything at all here?
Once again, really appreciate guidance here - thank you in advance!
Asa.
Sadly, having just been helped out amazingly with a leak on my 400 by the awesome guys that populate this forum, I am back! with another issue... )-: and seeing as it seems to be signifcantly different I have started a new thread.
Those of you who helped me before may remember that I had a slow leak and then ended up with fast one from a damaged oring on the reg. SO anyway no leak since then which is very cool - but then the not so cool thing that's happened since :
With the reg out to replace the oring I thought I would tighten the belville washers down a 1/4 turn to get the fps up a bit from 860 with 18gr JSB that it was set at. Having marked the starting point of the lock nut relative to the body and knurled brass ring with a sharpie, I first turned the locking nut without holding the allen key in but realised this was wrong so turned that back (don't know if that is significant) then did it again with the allen key holding the inside part still. I didn't have much time so quickly put a few shots over the chrono - result was all around 895-900, perfect I thought!
Then after trawling the forum for royale related stuff, got myself an HW100 reg tester that fits in the M6 stock bolt as suggested in a post by Wetherby - great tip thank you! This is where things went a bit different.
So I fitted the reg tester manometer in place of the stock bolt and started filling, now I've never tested a reg before but from my very basic understanding of it I expected the pressure on the gun's manometer and the reg tester's to increase together until the reg reached its pressure and then for the tester one to stop on the set pressure of the reg, which as I undersatnd should be somewhere asound the 140bar region... this may be completely wrong of course. Anyway what did happen was that the pressure showed by the reg tester carried on going up to 200bar at which point I thought something was not right.
I put everything back as normal and refilled to 200bar then tested the power, first shot came out at 920fps!!! then shot by shot the velocity dropped until it was well below 900 in about 30 shots... I removed the reg again and set it back to the original mark to see if my adjustment had messed things up and filled to 200bar, this time I recorded how the string went:
930
930
920
930
915
900
902
899
899
895
892
886
885
880
880
874
872
Then thought I would save my pellets...
Is the reg doing anything at all here?
Once again, really appreciate guidance here - thank you in advance!
Asa.