So, why are you guys taking this off? Just cause? Did you see a deterioration in accuracy prior to removing?
Thanks
DT
Thanks
DT
Upvote 0
To clean out lead dust. It also takes about 10 seconds to remove so it is easy to do."DanT55"So, why are you guys taking this off? Just cause? Did you see a deterioration in accuracy prior to removing?
Thanks
DT
I thought long and hard about going with the CFOS moderator vs the traditional 'centered' version He also told me there is literally no sound difference between the two designs.
BB - I tried shooting it without the shroud and the accuracy was better. The wind was up, so not a great test, but less flyers. But it was loud. I could not figure out a way to put the shroud on without "tensioning" the barrel. I think when the shot is fired the shroud is pressurized, which tensions the barrel further - potentially changing the POI.
What do you recommend to do to the barrel? I was thinking of maybe getting a TJ Barrel and having it fit to the RAW - shouldn't be too hard/expensive?? I was thinking about getting a longer barrel to maybe help in accuracy.
I also acquired a a RAW 357, but it will only do 760 fps with 81 gr JSBs. It is also super loud, as the previous owner ported the "moderator" I was hoping to set it up for big bore bench rest given the awesome trigger, but at 760fps I think that it is too slow. I was also thinking of a longer TJ barrel for that as well.
I don’t think the pressure cause the shroud to tension the barrel as the pellet should be long gone before that happens,
I don’t think the pressure cause the shroud to tension the barrel as the pellet should be long gone before that happens,
I am thinking that the shroud pressure might cause the shroud to shift/barrel to move for the next pellet. That might explain the shift of pellets over time.
For the 357: The regulator was set at 162 bar (according to the bestfittings regulator testor), but the hammer spring was short and a bit bent (ala HW springers). I did not see a hammer spring guide - the hammer spring was short, so not sure where one would fit. I was hoping to get the noise down from "waking the dead" to "shooting out of the garage" friendly. The FX Crown I tried in 30 cal was doing about 830 fps with 50 gr JSB - with the stock shroud, the sound was not too bad. Maybe a longer barrel would help with that as well. Any tuning tips?
I don’t think the pressure cause the shroud to tension the barrel as the pellet should be long gone before that happens,
I am thinking that the shroud pressure might cause the shroud to shift/barrel to move for the next pellet. That might explain the shift of pellets over time.
For the 357: The regulator was set at 162 bar (according to the bestfittings regulator testor), but the hammer spring was short and a bit bent (ala HW springers). I did not see a hammer spring guide - the hammer spring was short, so not sure where one would fit. I was hoping to get the noise down from "waking the dead" to "shooting out of the garage" friendly. The FX Crown I tried in 30 cal was doing about 830 fps with 50 gr JSB - with the stock shroud, the sound was not too bad. Maybe a longer barrel would help with that as well. Any tuning tips?
I see what you are saying about the next shot being affect by the previous shots pressure. Unfortunately I can’t think of a cure at the moment let me think about that.
If you are shooting .177 be mindful of the speed, I have tested loads of barrel with various pellets and have yet to find any that shoot well at high velocity, I shot 8.4grn pellets between 780-800, 10grn between 800-840 and I don’t bother with anything heavier as I am only shooting at paper and tin with .177 so power is not needed,
I will pm you about the 9mm
Bb
BB, I think that there are two hints in your posting for the 177: 1) I will try dropping the velocity a tad - either through heavier pellets (13.43's) or reducing hammer spring. That might get rid of some of the other flyers. 2) Maybe the shroud needs to be vented in the back with some material to slow the velocity a bit. That could avoid over pressuring the large diameter shroud causing POI shifts. I will try #1 first then #2, before going to my own version of a moderator
Thanks!
Dan