gp100
GrantCunningham.com - Revolver Liberation Alliance blog

Ruger announces new revolvers. Sorta.

Wednesday, January 06, 2010 Filed in: Revolvers, Ammunition

Ruger let slip this week that the GP100 and Blackhawk will now be available chambered in .327 Federal Magnum. The GP100 will carry 7 rounds with a 4" barrel, and the Blackhawk will chamber 8 rounds behind a 5.5" tube. This is welcome news for people who, like me, see the .327 Magnum as not fitting its originally advertised role.

The first chambering of the .327 was in the SP101, as Ruger & Federal were touting it as a self-defense cartridge. The theory was that one could get the "stopping power" of a Magnum cartridge but with less recoil than the .357. My testing suggested that any recoil difference was negligible, while serious doubts remained about the round's effectiveness against an attacker. I didn't consider it a good tradeoff, and said so in print more than once.

I also said that I thought it would be great for hunting predators and other medium game, and I still believe this is where it will find a niche. The .327 offers a significant boost in power over the .32 H&R Magnum, which should measurably increase the effective range of the caliber. The longer barrels and adjustable sights of the GP and Blackhawk will bring it into the hunting field; all that remains is for Marlin to chamber their 1894 lever gun in .327!

-=[ Grant ]=-

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I need your help.

Monday, September 21, 2009 Filed in: Revolvers, Gunsmithing

I'm currently working on a special project based on a Ruger GP100. One of the client's desires is for custom grips made to his specifications. This is where I'm hitting a dead end!

I've spent countless hours looking, with no results, for a custom gripmaker who will work with the GP100. This is why I'm asking my readers, who are some of the most savvy gun enthusiasts around, for help.

The client wants true customs with top notch fit and finish. This automatically disqualifies all of the mass producers, as well as places like Eagle and Ahrends. Since he wants grips made to his desires, the "pattern makers" like Spegel are out, as well.

Are you aware of a custom gripmaker who is not widely known, and perhaps isn't even on anyone's radar? The ideal candidate MUST:

1) Produce first-class work - nothing less.
2) Be able to make grips for the GP100.
3) Understand the unique needs of concealment ("combat") grips.
4) Be able to produce a grip to fit the client's desires/hands.

Beyond that, someone who works in non-traditional materials (micarta, stabilized spalted wood, etc.) would be most welcome. The client isn't set on any specific material; as long as it complements the gun, he'll consider it.

Price is not a concern, as long as it isn't significantly out of line for work of the caliber required. The client knows what first tier work is (this is not his first custom gun), and is willing to pay appropriately.

Now, understand that I've been looking for a while; if the person appears in the first 10 or 15 pages of a Google search for "custom revolver grips", I've probably already contacted him/her. Yes, I've heard of the smaller custom shops like Herrett's, and have contacted countless makers who list Rugers - just to find that they only do grips for Cowboy shooters using guns such as the Vaquero. So, before you send that email, please re-read the criteria above and be sure that your candidate can meet all of them.

As an incentive, the person who supplies information leading me to the right maker will get his/her choice of any shirt in my CafePress store collection! For the gripmaker, in addition to becoming a customer I'll do my best to get his/her name in front of a much larger audience. It's a win for me, the client, the gripmaker, and you!

-=[ Grant ]=-

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Is the Ruger GP100 inaccurate?

Monday, June 23, 2008 Filed in: Revolvers, General gun stuff

It sometimes amuses me how often one hears the same question, with only slight variations. One that I've heard over the years goes something like this: "Is it true that the GP100 isn't very accurate?" Personally, I've not noticed that any of mine are, but there is more to this story.

Assuming that the gun is "in spec" with regards to its construction (forcing cone, crown, chamber/barrel alignment, etc.) it should shoot quite well. Many GP owners, however, continue to complain about the accuracy of their individual example in the absence of those identifiable deficiencies. It so happens that there is a design defect in certain models of the GP100 that will definitely reduce the precision of the gun: the sights.

Owners of fixed-sight Rugers are generally much happier with the accuracy of the GP than those who have the adjustable sights, and I can't say I blame them. The first problem is Ruger's rear sight: it stinks, to put it bluntly. Don't get me wrong, the rear sight picture isn't bad (in fact I prefer it to Smith & Wesson's); the problem is that the Ruger rear sight often won't hold zero all that well.

It starts with a body which has a very loose fit in the frame's sight channel. It continues with universally sloppy fit on the sight pivot pin - the pin that holds the sight onto the gun, allowing the body to pivot up and down for elevation changes. The elevation screw, likewise, has a lot of "wiggle" in it, and the windage screw is often not any better. The net result is a sight that can't be relied upon to stay where it's set from shot to shot.

The rear sight isn't the only problem, just the biggest one. The interchangeable front sight often shows deficiencies of it's own. It is investment cast (like the rest of the gun), but without subsequent machining the edges and serrations remain quite indistinct. The sight picture isn't all that crisp, making a sure hold on target a bit like driving a well-worn 1951 GMC 2-1/2 ton flatbed farm truck. (For those who've never had the pleasure, imagine going down the street having to constantly move the steering wheel a half-turn in each direction just to maintain something like a straight line. Now try it in the rain. At night. Get the idea?)

I've seen more than a few front sights which also weren't secure in the dovetails, causing them to wobble a bit, and there are quite a few that don't have parallel sides. (Or worse, lack a straight top!)

The fixed-sight GP100 doesn't have any of these problems, which explains why their owners tend to be more satisfied with that model's performance.

There are solutions. The best is to replace the rear sight with the terrific Rough Country sight from Bowen Classic Arms. It fits precisely, and the opposing screws that adjust windage and elevation also serve as lockdowns for those adjustments. (If you've ever adjusted the rear sight on a FAL rifle, you know the concept.) The Rough Country sights have the easy change capability of an adjustable sight, but once locked down are as rugged as a fixed sight. There is nothing better on the market, period. Absolutely the best.

The Rough Country sight has a superb sight picture, and is available with a plain black blade, a white outline blade, an "express" (shallow "V") blade, and a blank blade - so that your friendly gunsmith can provide the notch that you feel is best.

The front sight can also be replaced with a Bowen unit. The Bowen front blade is precisely made, with perfect dovetails and parallel sides. It comes as a "blank" - it must be machined to shape and height, then blued, before it is of any use. It is an expensive part, and the additional machining adds to the cost, but if you're looking for the absolute best GP100 sight picture it is the way to go.

Outfitted with decent sights the GP100 really comes into its own, easily keeping up with the best from the competition. If you've not been happy with the way your GP100 shoots, take a hard look at those sights - my bet is you'll find they aren't terribly great!

-=[ Grant ]=-

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