by Dick Metcalf
Technical Editor
Shooting Times
Category: Gun Reviews
June, 2000
P-Series Centerfire Pistols
The most recent introductions in the Ruger centerfire auto line are in the P95 and P97 groups, currently consisting of four polymer-frame 9mm pistols scaled the same as the compact P93 guns and two .45 ACP Models. All other members of the P-Series family are made with investment-cast aluminum frames, same as the original P85. The P95 guns are offered in choices of decock-only and DAO versions in blued finish or decock-only and DAO versions in stainless. The P97 guns are offered in either decock-only or DAO versions—both in stainless. All in all, it's quite a list.
Current-generation Ruger P-Series pistols include several improvements and refinements that distinguish them from the original versions of the gun. Externally, the most noticeable operating-feature difference between a current "P" gun and the original P85 is the design of the slide stop: The current slide stop sits notably higher on the gun with its thumb-engagement surface well above the top of the frame and angled inward over the frame's beefy top shoulder. The reason for the design change was to streamline the gun's profile and to reduce the amount of the slide stop's outward protrusion, which was found to cause a bit of drag and resistance to a rapid draw with some holster designs. And original P85 barrels were of two-piece construction with the barrel and the square breechblock pressed together and then welded. Current barrels are cast as one piece with broached bores.
Also notably better than the original is current P-Series trigger pull quality, due to internal changes in the sear/trigger engagement linkages and parts configuration. The sear pivot pin has been reduced in size from original models, the trigger bar has been thickened, and the hammer-spring seat pin has been enlarged. The new mechanism also involves a bearing and slave pin to hold the sear blocker lever spring assembly together as a coherent unit. The overall result is a distinct smoothing and lightening of the trigger pull because the bearing considerably reduces friction in the sear assembly's operation without weakening the mechanism or reducing the mass of the working parts. I have done three separate 10,000-round endurance runs with three separate examples of Ruger P-Series centerfire autos, and all were completed without failure, stoppage-free. In my opinion they definitely deserve serious consideration for Ruger's claim of producing the world's most rugged conventional semiautomatic pistols.
by Dick Metcalf
Technical Editor, Shooting Times
Shooting Times
Category: Gun Reviews
August 3, 2001
Ruger’s .45 ACP
P90 Turns 10
A True Family
Regardless of chambering and slight configuration differences, all Ruger P-Series centerfire auto pistols have the same basic design. All have double-action mechanisms and operate on the classic Browning short-recoil principle. Metal-frame models are constructed from hard-coated investment cast A356T6 aluminum alloy; the recent compact P95 9mm and P97 .45 have molded polymer frames. All P-Series barrels, whether for blued chrome-moly pistols or stainless-steel pistols, are cast from heat-treated 400-series stainless steel. Many other small parts—such as hammers and triggers—in all P-Series pistols are also made of stainless steel. Standard barrel length for full-size guns, including the P90, is 4.5 inches. The two-piece, grooved black grip panels are made of General Electric 6123 Xenoy resin.
All P-Series pistols feature an oversize trigger guard to permit safe function with a gloved hand, and the front of the trigger guard bow is recurved to accommodate the support-hand forefinger in a two-hand hold. The rear sight is dovetail drift-adjustable for
windage; front and rear sights have white-dot inserts for high visibility. All P-Series models or versions are ordinarily shipped with an accessory package consisting of a fitted, lockable black polymer gun box; a padlock with keys; spare magazine; and
magazine loading tool.
by Dick Metcalf
Technical Editor
Shooting Times
Category: Gun Reviews
August 24, 2001
Ruger's .45 ACP Polymer Auto Pistol
Able To Stand Up To 5000 Rounds
Shooting Times received a review sample P97 from Ruger’s initial production run, and I submitted it to a performance review program devised to assess the new polymer-frame design’s ability to digest varied and different types of current commercial .45 ACP ammunition and to demonstrate how well it would stand up to extended use. The core of the program would be 4000 rounds of Winchester/USA 230-grain FMJ military-type ammunition generously provided by Winchester, supplemented by 100 function-test rounds each of nine different other commercial .45 ACP ammunition loads, plus an accuracy review with a selected half-dozen of those load variations representing different bullet weights, bullet configurations, and loading levels—all
of which would amount to a bit over 5000 rounds total shooting.
The nine additional function-test loads included CCI Blazer 200-grain TMJ Combat Match, Cor-Bon 165-grain JHP +P, Federal 180-grain Hydra-Shok JHP, Hornady 185-grain HP/XTP, PMC 230-grain Starfire JHP, Remington 185-grain BJHP (+P) Golden Saber, Speer 185-grain Gold Dot HP, Winchester 170-grain JSP SuperClean NT, and Winchester 230-grain SXT.
The outcome of all this shooting is summarized in the chart at the end of this article. In more than 5000 total rounds fired with 10 different loads, the Ruger P97 experienced no failures to feed, fire, extract, eject, cycle, or function. None. And if you trace through the firing profile as illustrated, you’ll see something interesting. To wit: The gun essentially shot just as well after 5000 record rounds as it did when new.
This is not a typical pattern. I’ve done several dozen extended 5000-round and 10,000-round reviews of various makes, models, and chamberings of quality-made centerfire auto pistols over the past decade. In general, given a basically sound, well-made gun, accuracy performance will usually improve, sometimes dramatically, during an initial wear-in period of several hundred rounds, while velocity will often improve as a consequence of actual bore polishing from the bullets (if you don’t think “soft” copper-alloy bullet-jacket metal has any polishing effect on a tough steel bore, explain how dripping water erodes stone).
Averaging about 2.25 inches at 25 yards, the P97 was as
accurate after having 5000 rounds put through it as it was new from the box.
Then, if the design is sound and the material is strong, things will remain at a fairly even performance plateau on out. Poorly constructed guns will wear and deteriorate. The P97 stayed right where it started—very, very good—all the way through, with remarkable consistency. I’d stake my life on the reliability and accuracy of this gun any day of the week. The P97 gets two thumbs up, for sure.
When I called to relate my experience with the P97 to Ruger’s Bob Stutler, his mild response was, “Well, yeah, we make ’em strong.” He also politely allowed as how my 5000-round review (of which I had been so proud in the telling) was only a piddling portion of the extended endurance testing Ruger puts all its pistols through during development. So nothing I had to say was going to impress or hold any surprise for him. Still, I could tell he was particularly happy about how the P97 project had worked out for the Ruger design and production teams. “Yeah,” he chuckled, “this one really shoots good, doesn’t it?”