Originally Posted by
rattletrap1970
Ok, here is some odd and interesting info to me. I loaded up some 7x57 with 287405 bullets. I went with the Lyman's minimum load for that boolit in that caliber which was 22.0gr of SR4759. I initially seated the boolits at the max length for 7X57 (Of course the stock ammo is a jacketed Spire Point). Well, the ammo would not chamber, but cut some nice rifling grooves into the boolit. I gradually walked the seating length from 3.000 inches to 2.800 inches (till the bolt would close securely every time). Very much looking forward to trying these, but, alas, I'm done shooting for the day today.
On a different note, but still a "Military" rifle, I will say that a 311284 seated to max length with 22.2 gr of SR4759 shoots outstandingly from a Fabrique National M1951 Army in .30-06. If I had optics I can guarantee this is a 1" to 1-1/2" shooter at 100 yards. Very pleasant to shoot also. 1559 ft/sec
This same boolit in a Marlin 336 with 34.0 gr of H414 makes a 1" group at 50 yards to 1-1/2" at 100 yards. 1898 ft/sec