I've had an Altaros reg in my S400 for many, many shots over about 2 years and so far no problems. It maintains a constant pressure in the plenum from 200 bar cylinder pressure down to whatever you have set it for, and that's all you can ask of any regulator. All the other advantages of a regulator come from what you do to the gun having fitted it rather than from the regulator itself. In my opinion, if you are just going to 'drop it in' you are probably wasting your money - with an AA 'S' series gun you would be better spending your time balancing the hammer and valve springs and making sure every part of the firing mechanism is totally grease-free.
Alan
Theoben TTR1 .177, Steven B Blue/Grey Laminate Stock, Nutshot Mod, Hawke Sidewinder 10x42 Tac IR
Daystate Pulsar. 177, Donny FL Sumo Mod, Pard NV008LRF
Thanks for the heads up mate. I already knew how to get round that problem. I just used a 3mm carbide end mill and sorted it out. What people should know is that having the power adjuster outside of the stock is illegal. One should not be able to get to a power adjuster without removing the stock. Remember the fuss with the old Steyr airrfile. If people choose to remove the cap then they should recap it somehow once the power and the regulator have been adjusted. The reasons I guess are pretty obvious.
A.G
I'm glad there's several of us discussing how to remove it. Can't ban us all hopefully.
I'm confident that capping it with a short screw is quite legal provided a regular chrono test is recorded on paper and energy kept around 11 for safety, though a knob in the form of a long cap head screw would be very unwise. Logging chrono readings id an owners responsibility even with anti tamper plugs in.
FWB target pistols have a great big screw in the grip that can take them over 6. Legal design presumably as they are 《F》rated.
My S400 target rifle cant get much over 6 yet it still has anti tamper. Why?? Took mine out because it drifted down to 3 over 2 year period.
I would be interested in seeing the statute regarding requiring removing stocks to alter the muzzle energy.
Last edited by TenMetrePeter; 21-08-2018 at 01:52 PM.
External powwer adjusters in themselves are not illegal so long as they alter the power within the legal limits set for the gun. Brocock and some others have some sort of gimmicky power adjusters to enable them to reduce the power for shooting vermin within confined spaces by restricting the airflow . The one on S400/500 series of guns can dramatically incerase or decrease the power therefore they are illegal if direct access is provided to alter the power on the go . If the security cap has been removed the adjuster must be recapped after the adjustment for the regulator has been made. Better be safe here as we are dealing with a ' firearm'.
This might help or not:
https://shooting-the-breeze.com/thre...djusters.5150/
A.G
That was 2010 and all opinions, and I'm not sure any subsequent statute or case law has made the position any clearer.
For my own peace of mind I have ordered from E8ay an M3 security torx button head screw and I'll leave the special torx bit at home. Readily available air arms break head plugs would be nice but they don't seem to have a part number.