TT33 or NP762 mag dimensions

[Riven]

Can someone with either one of these guns take some measurements for me.
Looking to see if they might have a chance of fitting my Ruger pcc with custom adapter.
Unless there are other choices of magazines that might fit this round.

 

[Ganderite]

I faced a similar issue in converting a 1911 9mm to 7.62x25. The 7.62 round is quite a bit longer (1.385") than a 9mm. What I did is switch to the 38 Super magazine (externally the same as a 9mm mag) and then seated the 7.62 bullets deeper, so they would fit the magazine. (1.280")