All of the pre 1952 models had blued bolts and were available with single trigger.

Any double trigger in a 'prewar' model can easily be swapped out for the single setup, readily available from Y1903 military models (they interchange).

High Velocity ('M1925') models were available in 7X57. The M1924 was .30-'06 chambered.

You also have the option of loading by 'stripper clip' with a pre 1952 if unscoped or mounted with a quick release such as claw mount or 'Vienna Snapper'.

The 'prewar' Take Down Model is a wonderful bit of kit and often they were equipped with the 'special folding peep sight.