I have a Bergara B14 with an 18 inch barrel, which came from the factory with a brake. I removed the brake and installed the thread protector on top of an O ring to alleviate the t.p. loosening.
Even with a fluted barrel, my Bergara is not a featherweight gun and recoil is de minimis. FWIW I shoot Winchester Deer Season XP with 125 grain bullets. I know the shorter barrel gives up some velocity, so I shoot a lighter bullet to gain a little more velocity vs shooting the more common 140 grain bullet.
I bought the rifle because I wanted an 18 inch barreled hunting rifle. The brake just added unnecessary length, so it resides in storage.
In general, the 6.5 Cm is not a heavy recoiling round.
But my only Ruger rifles are M77s, 270 and 7mm RM, no brakes on those either.