air pistol

7/29/2019 Air Pistol

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PNEUMATICARGETPISTOby Edward F. \Alsldron

McLing thls pistol willbe ercellent trcrining loryour metrrl lcfhe work.rl-tHIS air plstol. is an interesting toy, yet it shsots hard enoughI to break a milk bottle, and can be used for target practiee oreven for kining small game at reasonable range. It must there-fore, be Sven tbe careful handling required for any grrn or weaponcapabtreof inflicting a riound, however slighL

The pistol is essentially a metal-turning lathe project, and any-one possessingsuch equipment in his w.orkshop will have no diffi-culty ivith the elemerrtary gunsmithing involved. The drawingsgive Reeessary details and dimensions; a brief study sf the see-tional sketch wi0 make clear the gunis si4ple but effective con-strtrction and firing action. The force with which tJre pellet isejected from the muzde depends upon the amount of air presflrrepumped into the chamber, and needless to say, entire success ofthe gun's operation is based on a perfecf seating of the valve.Tlre barrel is the first piece to be worked on- Bore it from dpiece af.9ux3/4"piece of soft iron rsd" Stert the boring rvith an11/64" drill When this drill is as deep as it will go, use anotherLLI64,'drill to which a piece of E%." rill rod has been welded. Itis preferable to set the 3/+" rod in the lathe strapped against aheadstock center with the other end in the center rest. Be ex-tremely careful to have your centers properly aligne{ turn slowly,and avoid over-heating of the drill lContimtcil o* page 1701ffi i"il'r,.f;i;xtiiiu;lfif[*#HERASS BI,,SHING srcxr

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Pneumatic Target PistoiBoreromoneendalr he "". *n"l"*iltffi:tc,ornplete, lap it-carefully untila B B shot iust fa[;Inl9uCh freely but with no real clearance.The next task is to turn the barr.el to the dimen_glgns _ofFig.1. Counterbore the rear of the barrel|116" 5en and tap with a Tzu No.Z$ tap. Counterltrore the rear of the barrel for y4,,mole witb a g6odrill. Now turn a piece of t""ss rod i" i tfjfrt$riving fit for this portion ford dril t5,/32,, centerhole. lfith a taper reamer ream so that a B Bshot falts hatfwiy tfr"""et;t;-ttui*. on com_pletion drive thist in"*t ilri- the &;lountertore,and eheck with a B B shot. ffru'-sisLt" ,"; ;;;arade ior the banel. They are turnef out of brassor iron, filed flat and scie$.ed into tapped holesin ihe barrel. Sqe-Fig. ?. Next *"Al-tt e pfusf,or the rear end of the barreGs in !'f*. g.^ The trigger chamter is now mada*Again" care-fu! work is ealled for. It i" ;;e; "" ier I,ig. 4 of9b" stock. The vatve -fris. jj is;;d.;f-;t*t"prefenably, and ground to a perteet-6t, tbe valrrestem being -lapped into the valve chamber. Asatshctory but shorter_lived, valve may be rnadeor _apreee of rubber tubing slipped over a brassvalve and cemented into pla-ce. tirlJ"""" for theair is connected by a thr.laded nipple made of li,,1i'onthreadedy*ix28 ""a a"ififf-ioitr. " SZgs..hole. This dpplu is screwed *t" tfr. air releasef:1" :t tqe.trigger_ cylinder and into dhe rearenamber of the gun barrel, For permanence thesernay be brazed or soldered int, t;;. Clean ironsolders with a hot iron *.ra gooa-n*-.'. ?he-supply chamber ig mide of li"| brass pipetulned out inside until the mlls are-about BTBIJor 5/84', thick. The ends ,"* pf"gg"i and held*ritr "g-du hlg,ugh the plugs. tti""Jl"* o.",ro*e3efu11y soldered in plaie, "il-tlsh;. Connectthg. :"ppty chamber to-their$er-iyiinaer witha lt",nipple as yolr eonnected-if,e-"lil"a"" to thebar.rel-Fig.1.In order to get Dr_essute, he pump is made ofT6",brass pipu 6gtr;, ons. A pipe c.i is fitted oneaeh end and tulned ao* i"'Ji*i"*t" weight.A bieycle tire valve is placetlin tU"-toit"* of thecap as shown in Fig. i. ftt in tu.n is solderedand threaded to the eonneetion irrto.the "rnnf"chamber and the uipe cap;d.;J; irr* sopptychamber.-The pump ean now be compietely dis_assembled for the replacement of the foot-va-lve .in case of leaks. The cap on the other end of thepump is bored for a B/lb,, rod, a knob Stte{ anda leather plungel with a *"t " io" i"oli.rs ftt"af-or the other end. Care must bo;J;o see ttratthe pump cytinder is screw"a;l;;;"ttom oflhe c?p 1"o fat rhe ptunger;"-b;;;ed all rhervay to the bottom of the cylinderi The triggeris sawed frorn 16,'material n"a tL" S;..d is madefrom 1,46,,x11" brass. ,

lYh:" eompletely- assembld make the handle,lE gtr preces ot +t4',- wood tacked together andgtued with casein glue. the open -l!*uorr, ""u170

from page 12EJfilled with plastie wood and 11en tJre whole..assembled unit is carved and sande& to shapetqe trigger mounted, the guard placed" anit-tnfrwhole gun is ready for use.- The srghts ar-e adjusted by filing tc the righlreight as you shoot tJre gua at a distance of-10feet. Adjust the sights so that a full sight shootY+ahigh at 10 feet on a standard air rifle target

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air pistol

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