TP9 reliability by ammo type, what would you trust again after real round counts?

[MalosAegis]

I had one of those range trips where everything felt great until it did not, and it was just enough to make me second guess my ammo choices. TP9SFX here and I ran about 300 rounds last weekend. 200 of 124gr FMJ ran smooth, then I switched to 115gr because that is what the shop had and I got two failures to lock back on empty. Nothing scary, just annoying. I went home and realized my notes were basically vibes only, so now I am trying to learn from people who have real counts.

What loads have you put through your TP9 that were truly boring in a good way, and what loads caused the little hiccups like failure to lock back, stovepipes, or feeding issues. If you can share your model, rough round count, and whether it was during a clean gun or a dirty end of day gun, that would help me a lot.

 

[MudMan4]

Two failures to lock back on 115gr sounds like it could be grip or mag spring more than a true feed issue. Were you using the same mags for the 124 and 115? I’d try one mag only and see if the problem follows the mag.

 

[Gil]

You problem sound like one of two things, or a comination of both - too strong recoil spring or/and ammo choices. Ammo choices can be problematic, as many semi-auto pistols tend to be picky about what they are fed. CANIK's are not known for that problem, but it could be an anomalous one-off condition. As far as ammo goes, Most American made 9mm 115gr ammo works well in most pistols, but avoid Tula and Russian (Bear or Wolf) ammo, and all steel-cased ammo. My personal favorite 115gr ammo is Sellier&Bellot, It burns clean, fundtions perfectly all my 9mm's and is bargain priced here in Utah ($16 for a 50 round box).
You should contact CANIK about the recoil spring - https://www.canik.com/

 

[Badersk]

It has been a while but I broke mine in on about 500 rounds of white box 124 grain nato. After that it would run anything. Even 115gr steel case Blazer.