I have no experience with the Browning, but I can tell you something you probably already know; Support for the Remington slide action guns is extensive and should exist for many years. Browning has a tradition of changing models and charging lots for parts of even-existing models.

The Remington has a pretty good reputation in the USA for accuracy and reliability. A friend has used one for many years and taken many deer, bear and elk and cougar.

Remington's have a certain "tinny" feel to them in my opinion. The have lots of stamped, fabricated parts and when I was in the industry I sent a fair number back to Remington {actually, slide and auto} with barrel nuts that loosened leaving the barrels wobbly. Simple fix from Remington but it used to be, at least, an issue. Having said that, how common was the problem in light of the many many Rems sold? Probably not very.

Triggers on the Remington are notoriously spungy but the guns have a reputation for strength in handling a wide variety of cartridges and they are light and handy, too.

One in .35 Whelen would be fun, except I think Rem used a 1/16 twist.