This aerosol product by Shooter's Choice is designed specifically for removing carbon fouling and wad fouling in shotguns. We use this product and it works extremely well. Great for spraying down the barrel or applying with a brush or patch.
AEROSOL PRODUCTS MUST BE SHIPPED BY UPS GROUND ONLY. NOT BY AIR AND NOT BY POST OFFICE
Sinclair, Issue:5B, Page:157
Fast, Thorough Cleaning & Protection Of High-Performance Firearms
Non-drip consistency stays on the patch and spreads evenly over the bore to distribute the ammonia thoroughly onto the lands and grooves where heavy copper buildup resides. Also removes stubborn lead fouling and plastic wad residue. Excellent choice for problem barrels that seem to collect copper jacketing faster than normal. Non-embedding and non-abrasive; works well for new barrel break-in.
Big Book Catalog, Issue:71, Page:345
SPECS: 6 fl. oz. (177 ml) bottle.