In the reign of Elizabeth, cannon were much less primitive, for a great advance took place directly men learned the art of casting heavy guns. Until 1543, they had forged them; a painful process, necessarily limited to small pieces. After that year they cast them round a core, and by 1588 they had evolved certain general types of ordnance which remained in use, in the British Navy, almost unchanged, until after the Crimean War. The Elizabethan breech-loaders, and their methods, have now been described, but a few words may be added with reference to the muzzle-loaders. The charge for these was contained in cartridges, covered with canvas, or "paper royall" (_i.e._ parchment), though the parchment used to foul the gun at each discharge. Burning scraps of it remained in the bore, so that, before reloading, the weapon had to be "wormed," or scraped out, with an instrument like an edged corkscrew. A tampion, or wad, of oakum or the like, was rammed down between the cartridge and the ball, and a second wad kept the ball in place. When the gun was loaded the gunner filled the touch-hole with his priming powder, from a horn he carried in his belt, after thrusting a sharp wire, called the priming-iron, down the touch-hole, through the cartridge, so that the priming powder might have direct access to the powder of the charge. He then sprinkled a little train of powder along the gun, from the touch-hole to the base-ring, for if he applied the match directly to the touch-hole the force of the explosion was liable to blow his linstock from his hand. In any case the "huff" or "spit" of fire, from the touch-hole, burned little holes, like pock-marks, in the beams overhead. The match was applied smartly, with a sharp drawing back of the hand, the gunner stepping quickly aside to avoid the recoil. He stepped back, and stood, on the side of the gun opposite to that on which the cartridges were stored, so that there might be no chance of a spark from his match setting fire to the ammunition. Spare match, newly soaked in saltpetre water, lay coiled in a little tub beside the gun. The cartridges, contained in latten buckets, were placed in a barrel by the gun and covered over with a skin of leather. The heavy shot were arranged in shot racks, known as "gardens," and these were ready to the gunner's hand, with "cheeses" of tampions or wads. The wads were made of soft wood, oakum, hay, straw, or "other such like." The sponges and rammers were hooked to the beams above the gun ready for use. The rammers were of hard wood, shod with brass, "to save the Head from cleaving." The sponges were of soft fast wood, "As Aspe, Birch, Willow, or such like," and had heads covered with "rough Sheepes skinne wooll," nailed to the staff with "Copper nayles." "Ladels," or powder shovels, for the loading of guns, were seldom used at sea.