SinterFire's .380 is a 75-grain lead-free frangible bullet, built to break up when it hits steel, loaded to 1,025 fps for 166 ft-lbs at the muzzle in a reloadable brass case. The power factor is 77, 48 under the 125 minor floor, which matters here only as a measure of how little the bullet pushes back. The point of the load is where you can shoot it: indoor ranges that ban lead, and steel targets at close distance.

From a 25-yard zero the bullet is 1.8 inches low at 50 yards, so a center hold works on paper or steel at any distance a .380 is usually shot. Past 50 the curve steepens: the bullet falls another 11.7 inches between 50 and 100 yards and finishes 13.5 inches low, so long shots are not what this load is for. Recoil follows from the bullet. At 75 grains and 1,025 fps it gives a quick, sharp impulse with little weight behind it, which suits long indoor sessions and shooters still learning a small pistol.

Buy it for indoor ranges with a no-lead rule, for close steel where a solid bullet would be refused, and for anyone who wants a soft .380 session. It is a training load only, and its recoil will not prepare you for a carry round. Underwood Xtreme Defender 68 is the defensive take on a light, fast bullet at 1,300 fps and 255 ft-lbs, 275 fps faster than the SinterFire with about 23 percent more recoil energy in the same pistol; shoot a magazine of it before you trust the frangible to tell you how carry ammo feels.