Thanks Rog, I understand what you mean. but even with the fill valve off, there was no way I could see to get the entire end off. I don't know if it's a non-standard unit and judging by its appearance I suspect it is epoxied or bonded in, but there is absolutely nothing, internal or external that wo...

Just for the record, I couldn't get the filler off the cylinder. Someone has replaced the standard one with a nipple-type connector that had no depressions at all to attach a standard tool or circlip pliers. The hole behind the filling nipple itself is only about 3mm, so no chance of adjusting anyth...

Blackbaronfish wrote:Just look out for a GML conversions

BBF

I got the stripper and barrel band off eBay for £30 - pure luck, but worth looking out for. Makes for a really well balanced gun and the cylinder protects the flimsy barrel from accidental knocks. No effective way of fitting a moderator though.

Alan

Roger5 wrote:I knew it would be 57 mm, but more to the point, what length was the broom handle .rog

Sorry, some things are just too secret....

Thanks for your help, guys. I have now tried the pot at 56.0, 56.5, 57, 57.5 and 58.0 mm looking for the the flattest power curve with the lowest SD. Since I mainly use the gun for HFT (now there's a surprise ) I'm not too worried about shot count. The rather boring result is that 57 mm does indeed ...

I'm about to fit an Altaros regulator in my S400. From what I've read on here I'm guessing that I'll need to do some fine adjusting of the regulator and might need to get it out of the cylinder several times. What is the best way to do this ?

Alan

Roger5 wrote:I use a short piece of broom handle to reduce the volume. Rog

Roughly how long does the broom handle need to be? Sorry if it's a daft question, but I've never come across this idea before.

granville wrote:skan chrono .
if you are close you could borrow mine .
atb paul.

Thanks, mate. Unfortunately I live in Perth (the Scottish one). Just noticed that I didn't show my location.

Thanks guys. After the degunk, I think I'm getting around 80 shots in a 15 fps band. However, I'm far from sure as I've had problems with three different chronos today! That's why I haven't bothered to post the graphs themselves as I'm still not sure what's the gun and what's the chrono. However, tr...

Even though I have now solved the air blast problem http://www.airarmsownersclub.com/viewtopic.php?t=3257 my HFT 500 has not been running as consistently as I think it should with as much as 20 fps variation between shots! So I decided to give it a thorough service even though the gun is virtually n...