Sewdhull

No need to worry about too high a C rating. They are unreliable

So you've had no support since 2000s?

Yep

I'll have a close look at the hop bucking nozzle on the morrow, take some measurements.

Yes indeed, I've others I can try

I'm afraid to ask but what is air cocking?

In fairness few dmrs will meaningfully outrange a good aeg. But sniping is a laugh if the site suits it. As far as a dmr goes, good hop nozzle and barrel are really the things. Heavy BBS too and consistentcy OBS a little more joulage for another 10m of range. Tightbore Vs normal won't do much for anything really do long as the barrel is straight smooth and clean.

Numbers, 1 to 4 are semi. 5 to 7 3rd burst, or maybe the 1st 3 are burst ...

I'm not convinced it's feeding quite right, it seems to but the hop rubber pokes back further than I think it should

Ok, so I went with M105 spring from xt. Very consistent at 1.18 and 1.19J on .25 with hop off. I could only find .4g bbs but they gave me 1.17 and 1.18J. I still have to hop it so this is the peak energy and hop will scrub some off.

Hence the need for short mags

Thx, yeah I have many std mags for the g36 platform, it may be a non issue but a long mag might make being prone an issue, but it depends I guess how often I'm likely to have to lay down. Thx for the input this far.

Yes that's the 20s. I've seen these but postage is a killer https://www.sixmm.com/en-gb/products/ares-60-rds-magazine-for-ares-as36-sl-8-sl-9-sl-10-series

Spring might be dead ofcourse

I would suggest checking the actual fit of the nozzle in the hop and double check the cylinder is sealing properly. I've got a 6mm nozzle and 2 hops, one fits one doesn't. Can tell which is which. Unhelpful I know.

What's a typical dmr ammo load? I have some 20s and some normal ones. I've seen some shorter mags between the 2 sizes, 60s. Feels like a good idea tobuseva shorter mag incase I want to lie down. Can't see them in the UK tho only sixmm.com. Any thoughts? Probably relevant they need to be G36 mags

Back in the day ppl added heatshink to the nozzle to fatten it up. I've an mb01 here somewhere...

Does the ring have a place on the old hop rubber? You should be able to see where it was, compare the 2 hops and put it back? Failing that some dental floss maybe. Oh also see what the fit is like nozzle to bucking...

I've an old ksc mag, 20 years old I'd say, it's leaked but a clean and lube and it's good to go again It doesn't matter what you do so long as things work again.

Haha, well this is Airsoft after all. They can expand ofcourse, but that's with incompatible materials. Silicon o rings and silicon oil for example. I put something on a co2 mag o ring that made it swell 3 or 4 times it's size. No idea what the ring was made of, rubber probably.

Simply lubricating cleaning and allowing the o ring to expand free from compression may well have done the job. I've done the same in my mags, cleaning an old oring does work of it's still on ok condition.

Why do you think o rings dry out? Perhaps it depends on the o ring type, but I don't think any o rings have oils etc recommended to moisten thier insides. Rubber doesn't like propane, nitrile and viton are the choices. I'd presume modern magazines use nitrile o rings. Orings shouldn't absorb anything, they need to resist chemical attack stop any gas or fluid getting past them. Very cold o rings may get damaged as they lose elasticity which I'd suggest is what the valve o rings experience. You can fill the gaps in seated worn o rings using an oil or grease to get them to seal again, clean them or reseat them to get them to seal again but they don't dry out. If they appear that way they are ready for replacement. The surfaces wear and don't seal properly on moving o rings like valves for example. O rings do degrade over time, rubber is particularly vulnerable to this, but we should be using nitrile o rings yes? Wetting the oring is a temporary fix until the wetting agent has gone, altho the lubed o ring may have seated itself better than before. https://www.marcorubber.com/o-ring-failure.htm https://www.engineerlive.com/content/why-do-o-rings-fail

Im not convinced there is a purpose to lubricating an o ring that doesn't move against another surface other than during installation. Sliding surfaces certainly. If an o ring presses against a surface it's the o rings job to seal, like in mag valves perhaps.

The government do them selves no favours without specificity. Clearly a baseball or cricket bat isn't a baton and a defence would exist anyway, but Joe public with thier limited understanding will see issues.

I'm a fan of ponchos for wet weather, both on the hills and Airsoft, however good layering can let you get wet and stay warm. Brut...splash it all over