American Handgunner March/April 1981

used this form ofporting. As an additionalfeature, each hole was· tapped so theshooter had the option ofplugging holes invarying combinations until he found anarrangement that suited him. Both Greenand Teague felt this was especially importantfor it allowed adjustments to be madefor best functioning with different brandsand lots of ammo.There was considerable concern overthe effect on accuracy from drilling all theholes in the barrel. It was assumed thataccuracy would suffer, but the concern wasto what degree. Most of the experimentalguns grouped a little over an inch at 25meters, and everyone agreed this was marginal.High Standard set their accuracygoal at 3/4 inch groups. Unfortunately notall the barrel configurations were capableof this. One of the reasons for the loss ofaccuracy was that when the drill bit brokethrough to the rifling, it could not cut aclean hole. The resulting sharp edges deformedthe bullet. High Standard wasaware of this, and the guns that were shotin competition appear to have been polishedto remove as many rough spots aspossible. In a later Air Force development,a number of barrels were ported betweenthe drilling and rifling operations in manufacture.According to Green these barrels"Snyder was determinedthat High Standardwou.d produce the mostre'iab'e gun possib'e."shot considerably better. High Standard'stesting also included various types andtwists ofrifling, and ended up using a verylast one in ten twist. Every available brandofammunition was also tested, and Snyderreports that the High Standard guns preferredEley and Lapua match ammunition,but had a tendency to be erratic withother brands. The specially ordered Remingtonammo had a tendency to keyhole.Since any shot which appears elongated onthe target is considered a skidder, andtherefore a miss, in international scoring,the ammunition could not be used. Unfortunatelythe project ended without theU.S. ammunition manufacturers having achance to work on the problem.Rapid fire guns 9f the time shared acommon problem of unreliable functioning,and many good scores had gone downthe drain due to an untimely jam. Snyderwas determined that High Standard wouldproduce the most reliable gun possible,and felt that the magazine was a majorsource of malfunctions. For this reason,one of the four modelmakers was assignedto do nothing but make and fit magazines.Each one was tested in various guns untilone was found in which it worked reliably,and it was then matched to that gun. Theexternal dimensions of the special maga-AMERICAN HANDGUNNER· MARCH/APRIL,1981IIGUTRIDGE, INC.533-214th Street, Dyer, Indiana 46311 . 219-865-8617Suddenly,For Colt Government and commanderAs Quick as pointing your fingerCOLT 45 ACCURIZINGCUSTOM PPC REVOLVERwith the introductionof the Dillon RL300,EVERY OTHERLOW PRICEDLOADING TOOLIS OBSOLETEIThe Dillon RL 300 is a true progressivereloader, utilizing a four positionrotary shell plate which carries thecartridges through the various diepositions -- producing a loaded roundwith every stroke of the tool. Cyclic rateof the RL 300 is in excess of 400 roundsper hour -- production rates of 300rounds per hour can easily be maintained.The RL 300 is not limited topistol calibers. Powerful, compoundlinkage enables the fulllength sizing of all pistol and riflecalibers from .380 ACP to .30-06,using standard dies. Four die positionson the interchangeable toolhead provide capacity for a roll ortaper crimping station. The integralpowder measure system issupplied with one adjustablepowder bar (large or small,dependingon caliber).Completewith all necessary dies and powder measureSet up in the caliber of your choiceReady to start reloadingonly$335.00F.O.B. PhoeniX•Optional semi-automatic primer feed - includesall parts necessary for both large and small _