Friend of mine has a 1942 Mosin (and a few other arms now). Had the chance to shoot it on Crown Land last summer - was quite intimidated by it, but we went out again a few weeks back, and I had an absolute blast (pun not intended), despite knee high snow and -25 all day long. Something so cool about trying out the rifle that my great grandparents fought with - really visceral experience with the bolt action and recoil and everything.
Bit the bullet and signed up for my CFSC, which is at the end of June. I hear wait times are insane for getting your PAL, so I am not expecting to get my license until 2023 or end of 2022, but nevertheless I am now constantly researching these things and looking for a decent example that isn't too pitted so I can do some meaningful target shooting with it.
Seems there aren't really any ranges in the GTA anymore, right? I feel like I'll just end up going out with friends when they are driving up north to Crown Land. Would be cool to have a local option, but alas. Hunting is something I want to try sometime too - though reading about field dressing made me realize I have a long way to go until I have either the experience or stomach to do it, and do it safely.
There may be some “pay to play” ranges out your way. They may still be a decent drive away though. Check waitlists and get your name on one as quickly as you can if you find one in your budget.
For older milsurp firearms look for “select” models in the stores. You pay a bit more but they have been hand selected for being in better condition usually. That’s usually for SKS‘s as there’s lots of those but there’s a fair few Mosin Nagant about too.