From 1894 to 1903, the Krag cartridge used a 220 grain jacketed Round-Nosed projectile moving at 2,000 FPS.

It took years to overcome some problems.

During early development, the composition of the bullet jacket evolved to overcome problems with metallic deposits.

Priming composition was changed to eliminate fulminate of mercury, which compromised brass. The Priming continued to be corrosive.

There was an ongoing search for suitable propellants to eliminate instability, reduce bore erosion and extend storage life. Spanish American War time demand saw some use of  British Kynoch manufactured ammo loaded with Cordite. The eventual powder choice was Whisler & Aspinwall #30.

In 1898, the .30 cal. U.S. Army cartridge was 'stoked up' to move the 220 grain projectile at 2,200 FPS. This ammo was abandoned due to 'cracking' of bolt lugs.

Basically, the model 1896 sights (front-blade height and rear graduations - carbine & rifle) were sighted for 220 grain projectile moving at 2,000 FPS.