TPH Frustration - WaltherForums

Go Back   WaltherForums > Walther Firearms > PP and TP Series

Like Tree27Likes
LinkBack Thread Tools Display Modes
Old 01-09-2020, 02:22 PM   #1
Join Date: Sep 2016
Posts: 33
Grayfox .22
TPH Frustration

I have a 1990 Interarms .22 LR TPH that is driving me crazy. I purchased this gun used 3 years ago and to date have never been able to go through a full magazine without at least one misfire. Often two. However, the round will usually fire on a second or third strike.
I have tried just about every brand and type of ammo I can get my hands on. I searched and read previous threads here about the problem and tried everything suggested. I have thoroughly examined the pistol with a magnifier. No burrs, no nicks, no marks of any kind can be found. Chamber and breach face are perfect. The slide closes completely on every shot. It feeds perfectly. Cartridges fall freely in and out of the chamber.
I have replaced the hammer spring with a Wolff Extra Power spring. I have replaced the firing pin and spring and the recoil spring. The firing pin channel is clean. I have found absolutely nothing wrong with this gun!

About the only thing I can come up with is that current production .22 ammo is crap. The priming compound just isn't sensitive enough for this little gun to fire consistently.
I have heard that European ammo is better in these guns. However, nobody sells any locally. I'd have to order it and its pretty expensive for .22s.
Does anybody know of any really reliable ammo for this gun?

I'm open to any and all suggestions. HELP!
Grayfox is offline   Reply With Quote
Old 01-09-2020, 06:33 PM   #2
Supporting Member
Join Date: Dec 2018
Posts: 5
GeoJammy .22
I wish I could help sir - only thing I can add is my stainless/US-made TPH has been 100% with CCI Mini-mags. [Although I only fired around 25 rounds thru it - mag capacity sucks!] It hides away pretty close to the desktop in my office - so I just took a yellow wall-anchor (poor man's .22 snapcap) and dropped the hammer on it. Pretty deep and clear firing pin mark. Maybe, somehow, grabbing for straws here, but maybe your slide is slightly out of spec and the firing pin channel is too long for the firing pin? Any guesstimate of how much F/P protrusion you have with the pin pushed flush with the back of the slide? You didn't mention how deep the firing pin hits were on fired cases.
GeoJammy is offline   Reply With Quote
Old 01-09-2020, 07:18 PM   #3
Senior Member
Join Date: Feb 2009
Location: Indian Springs, AL
Posts: 9,123
1917-1911M .38
I think I would start by having a good look at the firing pin mark on several rounds that do not fire and then decide what to do next. This is a one step at a time problem I think. From piddling with plenty of .22s, one problem I routinely run into is a dirty chamber that doesn't let a round fully seat...the round gives with the first or second firing pin strike before fully seating. It then will reliably fire. You have probably determined that a dirty chamber isn't the problem. Perhaps you can compare your firing pin length with one that someone here has that works reliably. Ran into this problem a few years ago with a Member here (I think) that had a Smith .380 Bodyguard. In the final end it was determined that the firing pin ( stop area on the pin) had not been properly machined and was not being allowed to reach forward quite enough. OAL of the pin was correct. 1917
MGMike likes this.

Last edited by 1917-1911M; 01-09-2020 at 07:26 PM.
1917-1911M is offline   Reply With Quote
Old 01-09-2020, 08:40 PM   #4
Junior Member
Join Date: Dec 2019
Posts: 1
Pietro .22

I'm sorry for your problem...……

I recently bought an NIB Interarms .22LR TPH that came with 2 issue magazines.

Since the only ammo I had on hand was some Remington bulk and a brick of CCI Stingers, I ran both brands through both magazines.

The Remington bulk ammo exhibited sporadic duds; but the Stingers never bobbled.

I ended up running about 100 of the Stingers through it w/o any issues - so that'll be the ammo I feed it in the future.

FisherTim, pilkguns and mpgus like this.
Pietro is offline   Reply With Quote
Old 01-09-2020, 10:30 PM   #5
Join Date: Sep 2016
Posts: 33
Grayfox .22
Firing pin marks on cases show light strikes. I have replaced both the firing pin and the hammer spring. FP protrusion seems to be fine. The hammer just doesn't seem to have enough power to reliably set off the primer. I can find no cause for this.
Grayfox is offline   Reply With Quote
Old 01-09-2020, 10:47 PM   #6
Senior Member
Join Date: Apr 2013
Location: Sherwood ,Arkansas,U.S.A.
Posts: 963
axyardbob .22
CCI MINI MAGS ,AND CCI STINGERS have ran flawlessly for me ,the Rems and Wins not so much . Try the CCI 's before you do anything else , they may solve your problem . Lots of folks on here will agree with me that have one . If you'll do a word search on the search bar on here should lead you to multiple discussions of this topic maybe even a FAQ always a good place to start looking for answers . Hope this will resolve your problem , they are great little guns I carry mine everyday . Ayb
FisherTim and pilkguns like this.
axyardbob is offline   Reply With Quote
Old 01-10-2020, 08:48 AM   #7
Join Date: Sep 2016
Posts: 33
Grayfox .22
At one time or another, I've tried everything from CCI, Federal, Remington, Winchester and more. Always the same results. Most times it goes bang, but never complete reliability.
The thing is I like the little gun. I want it to work properly.
I know I could just sell it. But I just don't like the idea of dumping an unreliable gun on somebody else. That's apparently what happened to me and it just ain't right. However, I will admit that I'm just about frustrated enough to do just that.
IDK, I'm thinking of giving it one more try. Take the gun completely apart, examine every piece and polish the dickens out of every moving part. Make every piece work as smooth as possible. Maybe that'll fix it?
Grayfox is offline   Reply With Quote
Old 01-10-2020, 09:07 AM   #8
Supporting Member
olsoul's Avatar
Join Date: May 2012
Location: Florida "The Gunshine State"
Posts: 8,412
olsoul .22
Before you start polishing or "bubba-ing" your weapon why not send a PM to pilkguns. He is a Forums member who likely has forgotten more about the workings of the TPH than the rest of us have known.

He is a world renowned engraver but knows the ins and outs of these weapons and certainly would have some suggestions for you.

Give him a shout before you do anything else.
halfmoonclip, XRing and pilkguns like this.
A Mime is a terrible thing to waste
P.38 (ac 44), PPK/S, PPQ FE, P99c AS, PP (too many to count), PPQ Navy (classic), PPK, PPQ (classic)SBR, P99, PPQ 45 ACP, P.38 (ac 43)
In a man-to-man fight, the winner is he who has one more round in his magazine-Erwin Rommel
olsoul is offline   Reply With Quote
Old 01-10-2020, 10:16 AM   #9
Senior Member
Join Date: Mar 2010
Location: NC
Posts: 798
XRing .22
Do not diy polishing or other attempts to fix it etc.
Find a knowledgeable pro as olesoul suggested.
Polishing can ruin the surface hardness (slide and rails) and change dimensions in the wrong place ( chamber and ramp).
NRA Life Member, Gun Owners of America Member, Grass Roots North Carolina Member, VFW Life Member.
XRing is offline   Reply With Quote
Old 01-10-2020, 11:16 AM   #10
Senior Member
Join Date: Jul 2003
Posts: 7,062
halfmoonclip .22
They can be contrary beasts; went thru' 3 of them 25 years ago, trying to get a reliable one. Two since have run 100%, including the current one.
Pilkguns is a good suggestion, or the go to alternate, M&M Gunsmithing.
Neat gun, not to count on. Nature of .22autos and the cartridge itself.
pilkguns and GeoJammy like this.
"There is nothing there but war
Hear the murderin' cannons roar
And they say that we must go
and fight for Lincoln..."
halfmoonclip is offline   Reply With Quote

Lower Navigation
Go Back   WaltherForums > Walther Firearms > PP and TP Series

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.