graysclassics Posted June 21, 2011 Report Share Posted June 21, 2011 I have a couple of HW90's. One is standard, the other a 90K. I am just about to fit a webley pro moderator to the standard rifle making it even longer. Anybody ever cut an air-rifle barrel down and re-crowned it themselves to make a carbine? i.e. How essential is it to re-crown in a lathe, would it not be good enough to use a reamer and a needle file to make sure rifling is not marred? Unsure if the accuracy would be destroyed for a 50yd rifle, but I doubt it. Quote Link to comment Share on other sites More sharing options...
Dexterboyz Posted June 22, 2011 Report Share Posted June 22, 2011 i once cut about 1 1/2" of the end of an air rifle which had fixed iron sights in order to fit a silencer, all i did was make a clean level cut, filed the outer barrel then with round smooth file jst gave the inner a slight clean up to remove any shards, this did leave slight edge on the inner barrel but the accuracy of the rifle remained spot on, it did however loose a slight bit of power (where talking 1/4ftlb) as removing length from the barrel gives the pellet less time to gather speed as it travels down. Quote Link to comment Share on other sites More sharing options...
10WM Posted June 22, 2011 Report Share Posted June 22, 2011 A few years ago, I crowned a .17 Rem. centerfire rifle by putting a .22 tip in my drill, and grinding paste on the tip gently offering the tip into the crown until a nice even ground edge was done I seem to remember it took a few .22 tips to do the job. It did not have any adverse effects on the accuracy so don't think the original crown was as poor as I thought? What do people in general think of the idea?? Quote Link to comment Share on other sites More sharing options...
graysclassics Posted June 22, 2011 Author Report Share Posted June 22, 2011 i once cut about 1 1/2" of the end of an air rifle which had fixed iron sights in order to fit a silencer, all i did was make a clean level cut, filed the outer barrel then with round smooth file jst gave the inner a slight clean up to remove any shards, this did leave slight edge on the inner barrel but the accuracy of the rifle remained spot on, it did however loose a slight bit of power (where talking 1/4ftlb) as removing length from the barrel gives the pellet less time to gather speed as it travels down. Interesting - thats what I would have expected on an air rifle. Not bothered about loss of power as they are gas rams and can be tuned as desired. On the airgunbbs forum one chap said it would pattern like a shotgun.... I would have thought it unlikely if done properly by hand but I guess thee is only one way to find out! Shame I dont have a cheappo to try it on first.... Quote Link to comment Share on other sites More sharing options...
Dexterboyz Posted June 22, 2011 Report Share Posted June 22, 2011 Interesting - thats what I would have expected on an air rifle. Not bothered about loss of power as they are gas rams and can be tuned as desired. On the airgunbbs forum one chap said it would pattern like a shotgun.... I would have thought it unlikely if done properly by hand but I guess thee is only one way to find out! Shame I dont have a cheappo to try it on first.... yeah its always a good idea if ya got summat ya can practice on 1st, but like i said i dint notice any loss in accuracy at all! so i'd go 4 it if i was you, let me no how ya get on anyways. Quote Link to comment Share on other sites More sharing options...
graysclassics Posted June 22, 2011 Author Report Share Posted June 22, 2011 yeah its always a good idea if ya got summat ya can practice on 1st, but like i said i dint notice any loss in accuracy at all! so i'd go 4 it if i was you, let me no how ya get on anyways. Yep, I'm going for it... found a clip or two on youtube - seems easy enough to me.... cheers Quote Link to comment Share on other sites More sharing options...
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