The bill, S.F. No. 1156, proposes an amendment to existing Minnesota statutes regarding firearms that can be used for deer hunting during the regular firearms season. Specifically, it aims to allow the use of straight-wall cartridge ammunition in the designated shotgun use areas of Minnesota. Previously, the allowed firearms in these areas included only shotguns loaded with single-slug shells, muzzleloading long guns, and handguns. This amendment expands the legal firearm options to include other firearms that are loaded with straight-wall cartridge ammunition. The geographical area defined for these regulations spans parts of the state outlined by specific highways and county boundaries.