I have just joined this group after finding it in a google search for .25/.303 dimensions. Thanks to previous posters who gave the OAL at 2.185", this concurs with Ackley's 1962 Manual. I have a .25/.303 and have just measured a couple of cases full sized in a Simplex die. I get around 1.77" to the shoulder, which suggests that your 1.5' is possibly for the .25 Short Krag. Dimensions are fairly similar for .303 Brit and .30/40 Krag, and over here in NZ a number of Enfields have been rebarrelled to .30/40 with no fuss. My .25/.303 has shot 4 Red Deer, and I have never retrieved a Hornady 100gr projectile, as they have all gone through both shoulders and the heart/lung area. Either round would make a good US Deer rifle, just keep the pressures conservative.
