BCRA, DCRA have all the rules.
Basics - safe trigger, 80gr max, 18lbs and under including anything attached to the rifle. Rear bag is fine as long as it is not mechanically adjustable. Pedestal front rest should be ok but this rule is in flux (3" wide forend). Bipod for sure ranging from Harris to Remple skipods. Any scope and you definitely need to be able to finger adjust (target turrents). You are shooting prone at various distances. Scoring ring is usually 1/2 min X ring, 1 min 10/5 ring, getting bigger from there.
Just load up some 75gr Amax or Bergers if the twist is fast enough (9twist) and come on out. There are matches in Mission, several at Chilliwack, Kamloops.
All have a F(F) division specifically for 308's and 223's. You might need a bipod if they don't let you use a pedestal rest. Quality rear bag and fly at it.
Jerry