Such that ammunition is loaded at the rear of the bore.(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "breech-loading" in a sentence
"Most cannon are cast bronze, smooth bore, muzzleloading weapons, although some are breech-loading and older ones are constructed of iron bars welded and bound together."
"Foreign sportsmen, most of them titled and well-heeled men from the British Isles and Europe with gold-plated bison guns, breech-loading rifles and Purdey shotguns, came with enormous entourages."
"The battle extended to an area three miles by six miles, and soon turned into a series of single combats, in which the Rangers with reloadable .45-caliber six-shooters and breech-loading carbines held an enormous advantage of the bow-and-lance-wielding Comanches."