I don't now that a brake is gonna help ya one way or the other. Sorry to have to say this and I hope it doesn't sound too mean, but...If ya wanna watch the PD tip over or blow up, do it through a set of Binos with someone else shooting. Precision shooting is kinda like shooting skeet..shoot the target, don't worry about seeing it break. If ya raise yer head, ya miss!
Recoil on the 243 or 25 isnt all that bad, but like others have said, the barrel is gonna heat up quick!
Noise levels go WAY up when a brake is added. If ya do decide on the brake, make sure it's either removeable or has a way to close it off.
HWD