Big Boy rifles in rimmed handgun calibers established the original reputation of our centerfire models. All-Weather model lets you hunt in the rain and the snow with no fear of creeping rust. We have further upgraded these rifles to include a side loading gate for rapid magazine top-off. These slick, tough rifles come in three calibers, all with 20-inch round barrels for the long sight radius and maximum ballistic performance. All-Weather Big Boy rifles retain the original tube loading for the ease of making safe without cycling cartridges through the action.