That looks like something I can try
I was also thinking of trying a cotton bud coated with lapping compound (Q-tips are a pretty good fit for 177), but both ideas seem a little hit & miss.Jim
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| How to machine the leade? https://www.airgunforum.ca/forums/topic61960.html |
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| Author: | EverHopeful [ Sat Apr 19, 2014 6:04 am ] |
| Post subject: | How to machine the leade? |
Hi, Most of my crosman 177 barrels have a very sharp start to the rifling. Using a long probe the pellets engage with a very noticeable resistance and almost a 'click' which is somewhat unpleasant in operation, so I was wondering what the best way to smooth this transition would be. Which got me wondering how would one machine the leade in a barrel blank - is there some sort of special bit used, perhaps something like a reamer with a slight conical profile and maybe a guide to ride in the bore? Regards, Jim |
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| Author: | crossliner [ Sat Apr 19, 2014 7:47 am ] |
| Post subject: | Re: How to machine the leade? |
How about this one? http://www.network54.com/Forum/275684/m ... +-+part+2- |
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| Author: | EverHopeful [ Sat Apr 19, 2014 7:57 am ] |
| Post subject: | Re: How to machine the leade? |
That looks like something I can try I was also thinking of trying a cotton bud coated with lapping compound (Q-tips are a pretty good fit for 177), but both ideas seem a little hit & miss.Jim |
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| Author: | rsterne [ Sat Apr 19, 2014 6:17 pm ] |
| Post subject: | Re: How to machine the leade? |
Stolen from the GTA, videos by our own Sean Pero.... Quote: I put together a multi part series on making reamers for chambering and throating. The video specifically covers a throating reamer for a 45-70 but touches on and is applicable to Airguns Part 1 Making the tool body. http://youtu.be/ikrS6LiMZOE (video editing in progress, it will flip the correct way within 24hrs) Part 2 Hardening the tool http://youtu.be/FLDKenHq1A8 Part 3 Grinding the cutting flutes http://youtu.be/xVgitD8fQGo Part 4 Refining the flutes (video too big....editing in progress) Bob |
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| Author: | EverHopeful [ Sat Apr 19, 2014 8:44 pm ] |
| Post subject: | Re: How to machine the leade? |
Wow, that's amazing. I've been wishing I could do case hardening, but I have to say, that looks pretty intimidating. Many thanks for the links. Jim |
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