Is making a delrin transfer port a bad idea?

[robs5230]

Given the dimensions Barry, the OP seems to be referring to a tp on a pcp, co2 rifle

[Barryg]

Given the dimensions Barry, the OP seems to be referring to a tp on a pcp, co2 rifle

Thanks for clarifying

[rovercoupe]

Its on a stalker rifle that I am re building, it has x2 o rings on the port top and bottom and the measurements are just a guess as its at home and I am at work currently. I found now the original .22 port size was 2.5mm so will try that first. the only thing is that its a .25 so bit unsure of size to go with for a 12flb rifle.
I have a delrin rod spare form another project that would be perfect for the port and might need a few making of differing sizes to get the power right.
If it works its going to be my 10 yard squirrel gun!

[Hsing-ee]

the only thing is that its a .25 so bit unsure of size to go with to get the power right.
If it works its going to be my 10 yard squirrel gun!

Any squirrel that big will need a .338 Lapau Magnum at least, maybe even a .50 BMG.

[robs5230]

Its on a stalker rifle that I am re building, it has x2 o rings on the port top and bottom and the measurements are just a guess as its at home and I am at work currently. I found now the original .22 port size was 2.5mm so will try that first. the only thing is that its a .25 so bit unsure of size to go with for a 12flb rifle.
I have a delrin rod spare form another project that would be perfect for the port and might need a few making of differing sizes to get the power right.
If it works its going to be my 10 yard squirrel gun!

delrin should work fine

[Bjacobs571]

I would make the part out of metal myself. Brass, mild steel and aluminum are much easier to machine accurately as plastics tend to soften due to the heat produced by machining and a lot of plastics are too elastic and holes drilled in them are smaller than the drill.

[Benelli B76]

I would make the part out of metal myself. Brass, mild steel and aluminum are much easier to machine accurately as plastics tend to soften due to the heat produced by machining and a lot of plastics are too elastic and holes drilled in them are smaller than the drill.

Looking at the tiny application I would agree. I don't see the point of using Delrin, which is an option to use when there is a lot of hard work involved and in this case there isn't. Quick job and piece of cake to knock out in brass.

Baz