I also have a Gen 4 G26 and G19. I\’m shooting the 9MM 124 GR. RMR FMJ TRUNCATED CONE FLAT POINT MATCHWINNER BULLETS. With these pistols the chamber will accept a MAX loaded round of 1.150\”. This is where the bullet is kissing the rifling. A round will cycle but not very smoothly. To get smooth cycling the longest OAL for these two barrel is rounds measuring 1.120\”.

At 1.160\” I really think the rounds are too long. You can take your G17 mags that cycle the 1.160\” and see if they will cycle in the G26. I would work up a shorter loading. 1.100-1.120\”.

Question on the 1.160\” rounds? Do they plunk in the g26 barrel and can you spin them in the chamber?

As a side note, I picked up a G45 with the new Markman Barrel. My 1.120\” loads will not plunk in this barrel. I have to push them down to 1.100\”. Haven\’t had a chance to shoot is but will probably end up loading all my ammo to 1.100\”. KISS theory.

Keep us posted on what you find out.