stoeger a-tac gas ram help

[leetrenchard]

Tried a rammer by buying a Remington.

Found it to be about 7fpe with a slow but slamming firing cycle.

Spent some time looking for replacement rams, it seems to have a cheaply built gas ram that has too much friction in the seals, I think the nasty "slam" in the firing cycle is due to the piston landing forward after the pellet had left the barrel.

Bought a Titan spring for this (picked it from measuring length and diameters of action) and machined up a spring guide for it. This has restored the power, much nicer shot cycle and it more accurate!

Not really a good intro to gas rams, I expect a more expensive ram would work a lot better.

[sarpaul]

Tried a rammer by buying a Remington.

Found it to be about 7fpe with a slow but slamming firing cycle.

Spent some time looking for replacement rams, it seems to have a cheaply built gas ram that has too much friction in the seals, I think the nasty "slam" in the firing cycle is due to the piston landing forward after the pellet had left the barrel.

Bought a Titan spring for this (picked it from measuring length and diameters of action) and machined up a spring guide for it. This has restored the power, much nicer shot cycle and it more accurate!

Not really a good intro to gas rams, I expect a more expensive ram would work a lot better.

hi, to be fair, it was pushing about 11.5 ftp and shot quite well, but piston departed from ram rod, still worked, but about 5ftp and sometimes would not cock due to piston turning sideways in ram and restricting stroke, hopefully can source the correct ram, or down the spring road.....

[Neil54]

John knibbs has some in stock £40.
I have one but it's a bit hot in a .22 needs to go I a .177.

I have another I found on the bench. Unknown as to what it came from.

Is there a code on yours? Something like bt6 or bt9.

[sarpaul]

John knibbs has some in stock £40.
I have one but it's a bit hot in a .22 needs to go I a .177.

I have another I found on the bench. Unknown as to what it came from.

Is there a code on yours? Something like bt6 or bt9.

will try and read it, a bit illegible. will send you a pm later, regards.

[sarpaul]

john knibbs has some in stock £40.
I have one but it's a bit hot in a .22 needs to go i a .177.

I have another i found on the bench. Unknown as to what it came from.

Is there a code on yours? Something like bt6 or bt9.

thanks.... For not getting back to me?

[Neil54]

Ram dimensions
Body 18mm od
Body 150mm
Loa 262mm

Rod 8mm or 10mm

[sarpaul]

Ram dimensions
Body 18mm od
Body 150mm
Loa 262mm

Rod 8mm or 10mm

8mm rod, m8x1.0 thread i think?

[mattyw1987]

8mm rod, m8x1.0 thread i think?

That would be a fine thread for m8 I would guess m8x1.5 although could be wrong.

[sarpaul]

Ram dimensions
Body 18mm od
Body 150mm
Loa 262mm

Rod 8mm or 10mm

yes 8mm, what would the deal be?

[sarpaul]

yes 8mm, what would the deal be?

[Neil54]

It's not threaded.
Just a plain rod.