have a pair of 30/30 carbines i pack around a fair bit....newest one is a 21" factory taper carbine barrel i got here in the classifieds around a year ago; been using 36.0gr AR-Comp with the Barnes 120gr Tac-TX for 2664fps.
The one I've carried more is a 20" stainless MGM medium tapered contour, load for that one has been the Speer 130HP over 35.0gr CFE223; chronos 2420fps from that barrel...i've shot a few deer & hogs with that bullets & it works pretty well
at those speeds with nice expansion & penetration. I have recovered a couple of those bullets, will see if i have pix of the expanded bullets.
in the pic below, there is a lump on the topmost shoulder....that was a speer 130 that went through both shoulders & lodged just under the hide.