TMK/TGK info needed.

[Gary in MD]

Looks to me that you have enough bullet in the case as it is. I wouldn't worry about that old wives tale of needing a full bullet diameter in the case. I'd be more concerned in how they shoot and seat them accordingly. The 77 TMKs in a 22-250 are Bad *sses!
I have some of the 90s for my 240 but haven't shot them yet.

 

[FEENIX]

2.276" max. That don't leave much in the neck. View attachment 604455

The illustration below (.338 Thor) shows where the farthest out "I" wanted my bullet to be seated.

 

[FireFlyFishing]

As far as the TGK goes..
I really wanted to get the 165 .30 cal projectile to shoot in a 300 WSM. No go. So I then tried them in a .308 that's a known accurate rifle and I couldn't get them to shoot in that rifle either.

My dad had a Savage 110 Ultralite that wadded up the 130 6.5 variant.

I run 155 TMKs in one of my .308s and they shoot awesome.

 

[highdrum]

I'd def suggest the tmk over the tgk or "game changer" as they now call em. The jacket on the tgk has a tough thick jacket, and really controls expansion, too much in my opinion.

 

[Mike D Texas]

2.276" max. That don't leave much in the neck. View attachment 604455

That's plenty in the neck.