Period correct target stocks for your .357 Magnum would be made of walnut and look like those shown below.
Bill
My focus has been more on K target guns but IIRC the non relieved K target stocks appeared around 1950 and the football relief cut is introduced with the Combat Magnum in 1956.
If you compare the OPs diamond target stocks at the heel you will notice the checkering makes a rounded turn up at the back , now look at Docs older target stocks in the same place you Wil notice they make a sharp turn up.
On K target stocks that change occurred around 1963ish, my bet is N targets may be the same.
My focus has been more on K target guns but IIRC the non relieved K target stocks appeared around 1950 and the football relief cut is introduced with the Combat Magnum in 1956.
If you compare the OPs diamond target stocks at the heel you will notice the checkering makes a rounded turn up at the back , now look at Docs older target stocks in the same place you Wil notice they make a sharp turn up.
On K target stocks that change occurred around 1963ish, my bet is N targets may be the same.
Bill...I have seen and owned several pairs of stocks like those on your .357 Magnum. They date to 1959.
Bill