gemini52 Posted March 5, 2017 Report Share Posted March 5, 2017 I have a hw35 with a twenty inch barrel,toying with the idea of cutting it back to around 12 inches,i know the barrel will need to be recrowned,the question is will it need doing by a gunsmith or is there a diy solution,i have looked on utube and the ways shown using s brass screw and cutting compound,anyone done one if so any feed back will be appreciated. Quote Link to comment Share on other sites More sharing options...
jam1e Posted March 5, 2017 Report Share Posted March 5, 2017 I've seen lots of videos as you describe regarding re-crowning. Usually using a soft brass screw in a cordless drill, and covering it liberally in cutting compound. Going on the you-tube videos, they look like they come out ok. But i've been told, a non complicated re-crowning cost around £50. If you value your gun, why take the risk by going by You-tube videos?? I know virtually nothing about 'Gun-smith' work. But you intend on cutting down a barrel, by around half is a lot! It may affect the rifling. As in, would a pellet stabilize in such a short barrel? I have no idea myself. but i'd guess it would make some difference.. Just a thought, and hence your question i suppose. Good Luck! J. Quote Link to comment Share on other sites More sharing options...
Stonepark Posted March 5, 2017 Report Share Posted March 5, 2017 Brass screw diy method worked fine on my bsa lightning, shoots 3/4 groups at 30 yards. Quote Link to comment Share on other sites More sharing options...
pork chop Posted March 5, 2017 Report Share Posted March 5, 2017 Give it a go if it doesn't work out it won't take much for a smith to sort out ,cut it half " longer just in case Quote Link to comment Share on other sites More sharing options...
hyflier Posted March 5, 2017 Report Share Posted March 5, 2017 Me too, it really isn't difficult..... don't go too fast, and stop regularly to check your progress. Maybe take a snapshot of the crown now and compare it to the one you will be creating? Quote Link to comment Share on other sites More sharing options...
defender Posted March 6, 2017 Report Share Posted March 6, 2017 Would have thought it would be down on power with a shorter barrel. Quote Link to comment Share on other sites More sharing options...
gemini52 Posted March 7, 2017 Author Report Share Posted March 7, 2017 Would have thought it would be down on power with a shorter barrel. From what i have reseached it can bring the power up. Quote Link to comment Share on other sites More sharing options...
Pigeon_snIPer Posted March 8, 2017 Report Share Posted March 8, 2017 A good read on barrel length dynamics. http://www.pyramydair.com/blog/2005/04/is-airgun-barrel-length-important/ Barrel length DOES NOT determine accuracyThere is NO CORRELATION between barrel length and accuracy. A short barrel can be more accurate than a long barrel, or vice-versa. Length alone has nothing to do with it. Quote Link to comment Share on other sites More sharing options...
figgy Posted March 8, 2017 Report Share Posted March 8, 2017 I have a HW95 with a shortened barrel, it's accuracy is spot on for a springer. It has a Parker hale silencer fitted so the overall length is about the same as a gun without a silencer. Ideal for hunting in woods or hides. Quote Link to comment Share on other sites More sharing options...
krugerandsmith Posted March 8, 2017 Report Share Posted March 8, 2017 I've seen lots of videos as you describe regarding re-crowning. Usually using a soft brass screw in a cordless drill, and covering it liberally in cutting compound. Going on the you-tube videos, they look like they come out ok. But i've been told, a non complicated re-crowning cost around £50. If you value your gun, why take the risk by going by You-tube videos?? I know virtually nothing about 'Gun-smith' work. But you intend on cutting down a barrel, by around half is a lot! It may affect the rifling. As in, would a pellet stabilize in such a short barrel? I have no idea myself. but i'd guess it would make some difference.. Just a thought, and hence your question i suppose. Good Luck! J. Walther and most 12ftlbs air rifles have a one twist in sixteen inches rifling. There are some with one in twelve. Shortening the barrel should not effect accuracy providing crowning is properly executed. You could also benefit by having a faster Lock time. Quote Link to comment Share on other sites More sharing options...
mick miller Posted March 14, 2017 Report Share Posted March 14, 2017 Aren't air rifle barrels choked at the muzzle? To that end, don't you remove material from the breech end instead? Quote Link to comment Share on other sites More sharing options...
Stonepark Posted March 14, 2017 Report Share Posted March 14, 2017 Aren't air rifle barrels choked at the muzzle? To that end, don't you remove material from the breech end instead? A lot of barrels were/are choked but the effectiveness of the coke is variable, what is bad for accuracy is a barrel where the choke is not right at the end and you get a slight destabilization just before exit at the muzzle or you have an uneven crown. Quote Link to comment Share on other sites More sharing options...
saddler Posted March 14, 2017 Report Share Posted March 14, 2017 Wouldn't it be cheaper to find a shorter donor barrel, rather than pay a gunsmith to do the re-crown (if you decide not to follow the DIY option) The HW35 has been in continuous production since 1952, so lots of spares around. Quote Link to comment Share on other sites More sharing options...
gemini52 Posted March 17, 2017 Author Report Share Posted March 17, 2017 I have decided to leave well alone,the gun shoots fine so its best to keep it as is,if a spare barrel can be sorced at a reasonable price that may well be the way to go,thanks for the replys guys. Quote Link to comment Share on other sites More sharing options...
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