Hi Jerry,Garry and all.Jerry you are right about the weight of the 12 guage ball,however shot gun barrels vary a lot in size even at the chamber.The barrel I used was a loose one to start with and by the time I kleened it up and pulled the button through it the ID OA was .764''.which to be accurate is about a 10.44 guage.I had to make a ball mould which was my first ball mould and I got it withinby Danny - Airgun Rendezvous Main Forum
Hi Garry, Peter ,I did'nt take any photo's of the gun when it was in 12 bore format but still have all the bits and of course the .60 cal which is what it became,I'll take some photo's and post when my partner comes back from holiday with the camera.I should point out the ballistics I posted were with the main spring wound right up and was only good for one shot that left a cut above my right eyeby Danny - Airgun Rendezvous Main Forum
Hi Peter,I built a 12 bore pcp some time ago by useing a smoothy barrel.I made a rifleing button and pulled it through to create the pitch I wanted which was about 44'' by memory.It ran a 600cc tank(which I think is about 35 cu'')and could put out a 760gn hollow bum slug at 850 fps or a 870gn slug at around 790fps.Despite its retro construction I could put three shots off the same fill into a twoby Danny - Airgun Rendezvous Main Forum
Hi tofazfou,Nice group.Just out of curiosity is this group off a single fill or was the gun teathered ?Dannyby Danny - The Target Trophy Lodge
Thanks Kent,prior to getting into air rifles I was a big fan of silenced sub sonic .30cal powder burners for shooting goats.Now heres an interesting thing that I have found,the air rifles are more effective at bringing down game quickly than there powder burning equivelents.I've come to a conclusion(that may indeed be wrong)that the slug from a powder burner is sizling hot when it hits the animalby Danny - The Hunting Camp
Hi Neil,Nice looking gun.I'm down in the teviot valley just below alexandra.I think a mutual contact of ours passed on some 80 gr hallow base .30 cal slugs to you that I had cast. I have other moulds that I have spun out including a .50 cal. If you'd like to try some give me a bore size or slug your barrel and send it to me so I can size some accordingly.wbblaze@slingsot.co.nz.mind you by the loby Danny - The Hunting Camp
Very nice Gary,I've always liked the rotating breach block type action,simple and strong but seal up nice.You've designed and built a gun that is classy and has the look of being strong and dependable.I like it a lot,Joe will be on to the squirrels with that.What does it weigh in at in the format showen?by Danny - Airgun Rendezvous Main Forum
Thats right Garry,I've found another advantage of having a fairly light hammer reduces this effect considerably.Generaly speaking as long as the valve hammer etc are ballanced,the lighter the hammer the tighter the group.by Danny - The Hunting Camp
Hi Jerry,Well it aint rocket science but then there is'nt a book or books you can go to that will till you exactly how its done.There are existing formulae and tables etc that can get you close'ish but the rest of it is tri'al and error.I'dealy if you want a gun to give ex amount of shots off one fill with as flatter power curve as possible it would be tuned for a particular slug(weight design etby Danny - The Hunting Camp
Hi guys,well the availability of good quality nice performing big bore air guns in nz is just about zelch.There are a few people making custom guns but I haven't seen anything yet that grabed me,and of course there are the Korean guns that are ok out to say 60 yards.A few years ago I was doing a bit of rifle and pistol smithing(I have a trade in fitting and turning)and I thought it would be realyby Danny - The Hunting Camp
Hi all,went for a hunt a while back up in the hills where we live. My partner had been in the same area a few weeks earlier and shot a nice red deer in good condition.At this point I hadn't yet shot a deer using an air rifle so was keen to give it a go.Well I got the .60 cal out earlier in the day to give it a sight in intending to use it on the hunt but found was not grouping at 100 yards whichby Danny - The Hunting Camp
Hellow fellow air gunners,I've been fallowing this site for some time now and finaly decided to partake and share some of my airgun hunting expearience's with you.I live in Central Otago New Zealand.Before getting into airguns I was a big fan of silenced bigbore rifles with which I took many different species of animals.The prospect of a similar power range from a rifle that opperated on compressby Danny - Airgun Rendezvous Main Forum