Remington Model 4

Rolling Block Rifle, takedown models were introduced in 1890 through 1933.  They began in 1901 as lever, then takedown screw in 1926.  Approximately 356,000 were produced.  They were a single shot in 22 short, 22 long, 22 long rifle, 25 Stevens ("25-10"), 32 short, 32 long.