All are prone to it, but there are some that have a good enough seal to have basically none. The T/C's seem to have the best factory plugs for controlling blowback.
There are other factors to consider as well, and each rifle is different. One breech plug may have a different OAL than another, primer pocket may be deeper or larger diameter. You can take two rifles of the same model, they may look identical to the naked eye, but the headspace could easily be .010" to .020" different, possibly more.
The primers themselves, they have different lengths and diameters. Some primers have much more heat and pressure, as well as a longer burn time than others. The type of powder and it's burn characteristics also makes a difference in blowback.
Personally, I would steer clear of the Yukon (for several reasons), just too many other better made rifles for the same or less money to even consider one IMO. Some of the steel framed Pursuit models can be decent rifles IF you can find one with a nice trigger. Traditions rifles always seem to have very heavy triggers for the most part.
