Experience leaves no room for doubt that a few grooves are better than many, in all expansive-principled rifles: the nearer the approach to a smooth surface the better, and the three divisions of grooves and projections adopted by the British Government is the best to meet all requirements. They will shoot as well as poly-grooved rifles; and if three grooves give the same result, more are unnecessary and useless. The advantage of the atmosphere acting to keep the bullet steady by its current down the grooving on the bullet seems to meet with no confirmation; improved shooting accruing by the grooves being reduced, as in the case of the gathering-grooved rifle experiments. In all cases of wild animal shooting at short distances with small charges, the many grooves will be an advantage: the same as those formerly adopted, and which are shown in the cut. [Illustration] Expansive bullets may be effectually used; but in varying charges, incidental to game shooting, the same form of cavity in the bullet as is observed in the Enfield would not act, therefore a large cavity would be preferable to enable the less charge to act in expanding the lead into the grooving. For other purposes than war, rifles will continue to be constructed on the poly-groove principle, and with spherical bullets. The perfect destruction of various animals is dependent generally on two causes: the penetration into the body, and the shock to the system during that act of penetration. No doubt exists that a spherical bullet would combine these two qualities best. The 25 bore, the 32 and 50 hexagonal bore would be, practically speaking, useless for the killing of elephants, tigers, &c. The effectual and instant killing of seals on ice is an illustration: failing to kill a seal dead, he will to a certainty reach his hole in the ice, and disappear, to the shooter’s serious disappointment. Small bore elongated bullets were very rapidly adopted, and as rapidly abandoned. “They did not kill dead;” the spherical bullet did this better. It would be wise to pause and consider whether a good military rifle is a good game-shooting rifle or not: whether the hole in the beast be wide enough. I am inclined to think the reduction to a bore of 25 too small for this purpose. In military muskets of smooth bore, the elongated bullet is not applicable: very little benefit is gained in using them in a smooth bore; and, although the original invention contemplated this, experience decided otherwise. The spherical bullet being thus indispensable, it follows that one size should be adopted which combines the greatest number of favourable points. Many years ago I made numberless experiments to ascertain this fact, and had it demonstrated beyond all doubt to be a bore of 18 and a bullet of 19; the difference in size admitting of the paper of the cartridge with a moderate degree of tightness. The ultimate range of such a musket with