Sphinx Accessories

[Walt Sherrill]

I use the dictionary definition of camming I'm familiar with.

http://dictionary.reference.com/browse/cam

There is a notable point in the DA trigger pull where the hammer rocks back, as if the underside of the hammer has a flat spot or some kind of irregularity. It's not a smooth press to the rear because of this and upsets the sight picture. Sometimes on DA/SA pistols this isn't actually a surface interaction problem but an overly stiff firing pin block spring (HK pistols see this a lot) that makes the last part of the DA pull notably stiff. I've replaced the firing pin block spring with David's kit though.

I now understand what you're describing. That is NOT the way the term is typically used when talking about CZ-pattern gun "camming" -- and I was responding as though it were a typical CZ-like issue. That's not an error on either party's part in this discussion, just a different use of the term than seen on most forums.

With some CZs, the cocked SA hammer, when you pull the trigger, rather than the hammer dropping (as it should), moves BACK a bit to finally clear the sear. Those of us who like crisp SA triggers find that off-putting. The aftermarket hammers available from CGW and the CZ Custom Shop typically make that extra motion go away -- but it's associated with the SA trigger, not with the DA trigger.

Sorry your SDP isn't as nice as the several I've handled or the one I own.

I wish mine were a safety-equipped model... which weren't available when I got mine. I haven't heard of anyone getting one of those models, yet, and I doubt that later conversions aren't economically practical.

They'll be starting up a KRISS/Sphinx Forum soon, and some of these and other issues may be addressed, there.

 

[WVsig]

They'll be starting up a KRISS/Sphinx Forum soon, and some of these and other issues may be addressed, there.

Interesting. Do you think there is enough interest to make an active forum. I would be on board to help in anyway I could.

 

[Worc]

I noticed the magazine supply tighten up shortly after the SDP had the price drop from the initial release price. Back when I was buying them, they were pretty easy to find for right around $30.00 each. It's not uncommon for some models to have magazine shortages from time to time. I've seen for my Walther PPQ M1 at at one time and HK P-30 VP9 mags are still harder to come buy.

My SDP fits the same holster as my other nines do. It's a N82 Original that I can carry on my right side or on the left as a cross draw.

My SDP has a CGW spring kit installed and it still has a heavy DA pull with a flat spot towards the beginning of the stroke. It's been present to varying degrees on every SDP I have shot or dry fired. My own being more noticeable than most.

 

[745SW]

I'm in agreement that a high precision arm will be limited to a couple of specific brand/model ammo. While Paul L of pistoldynamics doesn't say directly the jest is if a arm is expected to digest almost anything a precision arm is not your thing.

 

[Walt Sherrill]

I'm in agreement that a high precision arm will be limited to a couple of specific brand/model ammo. While Paul L of pistoldynamics doesn't say directly the jest is if a arm is expected to digest almost anything a precision arm is not your thing.

The S&W 52-2 I once owned was a testimony to the accuracy of your statement, above. With that gun, if you didn't roll your own, you'd have a lot of problems finding ammo that would run in it. I didn't roll my own. (Just finding ammo that fit in the mag was no small challenge!!)

On the other hand, the SIG P-210-6 I bought new and had for a several years seemed to shoot ANY 9mm I loaded in the magazine. Ditto the SIG P226-X Five Competition (in .40) I traded away last year.

Some precision guns are a real pain -- others...