Re: Gunsmiths doing the 300 Tomahawk conversion
If your going to stay with the standard length barrel that is on your present rifle, you may want to just leave the rifle a 300 RUM (if it is a 300 RUM) and shoot it till the barrel goes sour and then rechamber.
If your staying at the 26" length, the Tomahawk won't give you "that" much more punch but, a little bit.
If your wanting to go to a 338 and rebarrel at a later time, the 338 RUM is still a good choice for the rifle you want to lug around.
I have found that the Tomahawks will give "up to" 5 and 6 grains of additional powder capacity and is worth it for the extreme range shooter with longer barrels.
Because of the hassel, possibly a gunsmith in Canada can do the standard RUM of maybe they/you can buy a Tomahawk reamer from a company in the States when your ready?
Just my 2 cents worth