here's some info:
"Charles Newton designed the .22 Hi-Power and .250-3000 for Savage over a century ago. He also developed a line of high-performance hunting rounds and rifles, including the .256 (actually 6.5mm caliber), .270, .30, .33, and .35 Newtons. The .30 Newton originated soon after the .375 H&H Magnum was introduced in 1912. However, unlike the .375 H&H with its belted case, the .30 Newton was beltless. But the case head diameter was almost as large as the H&H’s. Although overall length was the same as the .30-06, the .30 Newton certainly delivered magnum performance."
There was also a 400 Newton.
Reproduction cases are available at about 4 bucks each.
30-06 length non-belted magnums are nothing new !
