I have never been able to tell much difference between a good 97 trigger and a good 83 trigger. As for accuracy - don't think there is much difference, assuming a good trigger. Match chambers are more difficult to load but not that necessary in my opinion. Best answer is, whichever you shoot better. Personally, I shoot the 83's better than the 97's. If it was me, then, I'd get the 83. Besides, you can find 83 Model 252's cheaper than you can 97's, unless you are buying "new."