12: Ultra Rare Browning High-Power Safari Grade - Sako Action in 284 Win with 24" Barrel - Man 1967. This great bolt action rifle was manufactured in Finland and it features a Sako action, a beautiful checkered wood stock, a drilled and tapped receiver, a jeweled bolt and a nice blued finish. The gun is chambered in the very rare caliber of 284 Win where only 162 were made. If you are looking for a very rare Browning, you got it here. Estimated Value: Low: $2,600 High: $3,000