[wack86]

I have a .22 tph.  It is an interarms version.  It doesn't seem to work too good.  After I fire a round, the slide doesn't close all the way.  The best ammo I have found so far are CCI minimags, which seem to work better than the rest.  Any suggestions?

 

[Mighty Favog]

Umungst other things the recoil spring may be getting weak. CCI's are usually loaded pretty hot so the slide may be bouncing off the frame when it cycles backwards.

Had a similar problem with one of my competition guns (silly me, I should be changing those things every 2,000 rounds anyway).

For now try a drop of oil on the slide rails and make sure it's cleaned VERY well.

 

[wack86]

Thanks for the advice. I do notice that it seems to work better when it is clean and lubed, but after 50 rounds or so it starts 'acting up'. It has done this since I bought it new so I don't think the spring has worn out, unless it came that way from being stored for a while before I bought it. Where can I get a new spring?

I have heard that the interarms ones were not as good as the german ones and that is why they quit making them.

 

[Mighty Favog]

If that gun was sitting in storage for a few years it could very well have developed a "memory" in the spring. Meaning it started to take the form of it's compressed state. I had an underpowered (on purpose) 13lb. spring for a 1911 (factory is 18lb.) that did the same as yours. After a few years it felt pretty darned weak. I ordered a couple of new Wolf springs, again 13lb., and it felt twice as stiff and the gun worked great (patting self on the back since I built the gun). I think the first springs were from Bulleye.

You can try here but I would call them to make sure a TP will work with a TPH:

http://www.gunsprings.com/1ndex.html

If your going to store it more I'd do it with the slide taken off.

There could even be a machining burr near the feed ramp. Check for any deep gouges in areas that would normally mate with another part.

 

[wack86]

Thanks for the advice. They don't carry the springs for the TPH but I did order them from www.e-gunparts.com.

I also found out that Interarms shipped numerous .22 tphs with the .25 tph recoil spring, so that could account for the problems I am having.

I took it down to the range with half a dozen different ammo types and again the mini-mags worked the best. I hope when the new springs come, it will work even better.