GBBR thoughts...

[Enid_Puceflange]

That's some pressure... I presume its absolute pressure, propane is 135 psia.

Those pressures are reported to be when at 25 deg C

Not much chance of that happening up here in January ?

View attachment 121309

 

[Sewdhull]

That's a useful thing to have on the gas for comparison.

The actual pressure I think will an atmosphere less as pressures are usually quoted with refence to a vacuum.

Anyone have the lil chart for green gas?

 

[Enid_Puceflange]

That's a useful thing to have on the gas for comparison.

Yeah, I was actually toying with the idea of getting the adhesive versions for on my mags to see their actual temperature, then realised the gas tubes are inside the polymer mag shell and would therefore only give an outdoors reading

still might be handy ??‍

 

[C-Diddy]

Anyone have the lil chart for green gas?

This one?

View attachment 121315

 

[Sewdhull]

Yes. Every gas cylinder should have that. Thank you.

Find out what pressure your gun likes and then adjust your gas to suit.

 

[Enid_Puceflange]

Well, 

Ran it today at an indoors site

Snow on the ground outside and a temp of 2 C, wasn’t much warmer inside

A comfy 1.2J using the Orange Ultrair and dialled in with the Npas

 

[Sewdhull]

Oh, you have an adjustable valve...I take it your experience of propane or the propane butane mix hasn't been successful at that sort of temp?

 

[Enid_Puceflange]

Oh, you have an adjustable valve...I take it your experience of propane or the propane butane mix hasn't been successful at that sort of temp?

Never bothered with Propane

i bought a bottle and a nozzle, filled a mag and the smell almost made me Vom

So screw that!! ?

 

[Tackle]

Never bothered with Propane

i bought a bottle and a nozzle, filled a mag and the smell almost made me Vom

So screw that!! ?

?Your not supposed to sniff it, by any chance are you from Glasgow ? ?

 

[Sewdhull]

Propane butane mix is the ultrair buff coloured bottle

 

[gavinkempsell]

How much gas is enough gas & is there a technique to filling a mag more than filling with the nozzle upper most?

Asking because I filled a mag for a count of 5 which gave me around 5 shots,

then filled it to a count of 10 which didn't fair much better,

finally tried 3 seperate counts to 5 which gave me over 100 shots...

Mag was vented/emptied after each try.

Obviously my last attempt yielded the result I wanted but can I over fill a mag to the point of damaging it?

 

[JimFromHorsham]

I fill in pulses , 3-5 seconds at a time , 2-3 times , seems to work ok for me .

 

[Sewdhull]

Colder magazines will fill better, new gas going into the mag will equalise the temps until the mag cools the gas down so adding gas then waiting and then adding more gas is the way to do it. It's hard to overfill a mag but I'm sure it's possible with some effort, unless the mag is designed to keep a bubble of gas in the mag when filling.

You can hear the liquid gas going in with your ear to the can.

 

[Adam97]

Following on from a conversation on the forum earlier tonight it got me thinking...

I know I'll get myself a GBBR at some point in the new year and would like some of your opinions please.

I tend to buy versions of pews I don't already own (a mix of props, replica's & AEG's) but like a mix of each 'type' and have aquired a few AR15's, AK's, Bullpups etc, each one is slightly different from the next, but I tend to use my SCAR or L85A2 in game & bring a third to use if I fancy a change, a pew is too hot or fails, basically I'd like to use each in my collection but like some more than others.

So, I'm looking at getting either...

a Tan Scar-H GBBR(WE seems to be the only choice)

or an M4A1 SOCOM GBBR(but I already have 2 AEG's)(like the idea of the realistic take down)

or an H&K 417 GBBR(for some reason I'm not keen on the 416 looks, despite being almost identical IMO)

or Mk18 GBBR

Do you have any strong opinions regarding any of these? (yes I've read through the other posts in the forum dut they tend to be focussed on one pew).

My budget is likely to be around the £500 mark with some wiggle room, mag prices seem to be fairly standard from most sites so that's a seperate budget.

or do you have any other suggestions for a GBBR?

Iv got a we scar for sale 

 

[Enid_Puceflange]

Iv got a we scar for sale 

Than pop a listing in the classifieds with your name and todays date written on a piece of paper included in the pictures of it

Theres a good chap ?

 

[gavinkempsell]

Iv got a we scar for sale 

I know M8, I made an offer you didn't accept.

Spent the money on an XM177 after you rejected my offer.

Thanks anyway, I'll maybe get in contact again if you're still selling in a few months.

Than pop a listing in the classifieds with your name and todays date written on a piece of paper included in the pictures of it

Theres a good chap ?

They already have a couple of times M8.