FluffFire
FNG
Weight is normally a non-issue unless you're planning on hiking many miles a day with the rifle. The magnification rule of thumb is: 1x per 100 yards. So if you're only hunting at 400 yards, a 4x scope should do the trick. That being said, my eyes are not the greatest. I've found 2x per 100 yards to be the sweet spot for me personally. Hope this helps.