I rebarreled all my 7mm Express rifles to 280 Remington when ammo for the 7mm Express became too hard to find. I honestly can't see much difference, but I like the silver cases with black bullets.
Last year my buddy shot his elk with his 280 Remington, using Winchester ammo and the bullet did OK, but the jacket went clear through the elk without the lead part. I told him he's just asking for problems like that when he mismatches ammo and gun brands. He's looking for someone with a 280 Winchester, to sell them some ammo cheap...19 rounds.
Hope this helps.
