2240 Crosman barrel

Poorman Plinker · September 23, 2015, 06:29:42 PM

After many mods on 2240 platforms I have ended up with a few spare 7.5 inch barrels to play with. First thing I noticed was the sharp edge on the breech face (in firearms that is the outward surface of the chamber).

1377x · September 23, 2015, 08:28:04 PM

Another reason for us to mod our $60 guns into $$$

DBOdude · September 24, 2015, 04:36:08 AM

all those 13xx/22xx/discovery barrels can be made more accurate by polishing the lead and some need to be recrowned .
are the current new barrels still coming with streaks along the inside length of the barrels ? and is the first inch or two behind the crown on .22 barrels still sometimes boogered ?

7624452 · September 24, 2015, 05:26:09 AM

Are you saying the pellets were frightened ? You should post some pictures.

Poorman Plinker · September 24, 2015, 02:27:00 PM

Scar - Scare? Breech - action? Chamber - leade? OK every discipline wants their own jargon but after years working with firearms the airgun community has me stumped.

Now that you want to call the action a breech.... what do you call the breech? Now that you want to call the freebore the leade... what do you call the leade? To me it is frightening

that we need to correct scaring to scarring but will ignore breech and leade

. I may be dyslexic, and that may seem worthy of derision, but I do know to call a spade a spade.

Poorman Plinker · September 24, 2015, 02:48:46 PM

Not having a burr and not wanting to spray grit or change dimensions I used drill bit rod stock and semichrome which is a low grit polish to burnish the freebore and to cut a leade into the rifling. I used a .222 spiral concrete bit that I covered with vinyl tube for the freebore. The vinyl acts as a drill stop and provides a smooth surface for the drill chuck. I cut the end off of a 3/32 (.218) HSS bit and rounded the end to burnish a leade into the rifling... it does not take the entire edge of the rifling off just rounds it a bit. I also have vinyl tube on it to act as a drill stop. I do not want the pellet sliding down the barrel just want to take a bit of resistance off the pellet when pushed in by hand.

7624452 · September 25, 2015, 03:47:57 AM

Quote from: Poorman Plinker on September 24, 2015, 02:27:00 PM
Scar - Scare? Breech - action? Chamber - leade? OK every discipline wants their own jargon but after years working with firearms the airgun community has me stumped.

Now that you want to call the action a breech.... what do you call the breech? Now that you want to call the freebore the leade... what do you call the leade? To me it is frightening that we need to correct scaring to scarring but will ignore breech and leade . I may be dyslexic, and that may seem worthy of derision, but I do know to call a spade a spade.

I was just attempting to be humorous. Your reply is strange. Did you not publish a book about air guns ?

Poorman Plinker · September 29, 2015, 10:02:29 PM

LOL I two was trying to be cheeky

However, I wish that compiling a compendium of terms was the end all and the be all of my research. Even using the most common firearm/airgun terms still leaves me with difficulty in describing things to a group that uses multiple terms for the same pieces... and when working on projects I find myself having trouble describing process' in "correct" terminology.
You would think something as straight forward as the size of a screw could get concenses (sic)

but it does not LOL.

A dictionary is a document that continually needs revision and editing so I will continue to ask the stupid questions

I figure every too years I will need an new edition as I only spent 4 years collecting the terms for the first edition.