All good advice. My advice is this:
You can't just buy your way to hitting 1 MOA at 1,000 yds. A good rifle with top quality optics will make it easier, but very few people just start out and shoot 1,000 yds. You have to train like a pro to shoot like a pro. You wouldn't expect to be an Olympic-class marathon runner just because you can jog on weekends. Take your Browning, put a good scope on it, and shoot 3,000-5,000 rounds at gradually increasing ranges over a year or so, working up to 1,000 yds. THEN buy a rifle and scope that will consistently perform at 1,000 yds.
You can't just buy your way to hitting 1 MOA at 1,000 yds. A good rifle with top quality optics will make it easier, but very few people just start out and shoot 1,000 yds. You have to train like a pro to shoot like a pro. You wouldn't expect to be an Olympic-class marathon runner just because you can jog on weekends. Take your Browning, put a good scope on it, and shoot 3,000-5,000 rounds at gradually increasing ranges over a year or so, working up to 1,000 yds. THEN buy a rifle and scope that will consistently perform at 1,000 yds.