Originally Posted by ghr1142
I bought this back in 1965 and don't think the + P ammo was even avaliable at the time .
Well, yes and no.....
At the risk of making some folks mad, other people have asked the same question, and here is what they have learned:
38/44 ammo was made decades earlier than 1965, and is what led to the 357 Magnum. 38/44 rounds are noticably more powerful than today's 38 Special +P.
Old S&W advertisements state K frame 38's can handle the 38/44's, although they didn't recommend it as a regular thing to do.
Quite a few folks have chrono'd & compared: original boxes of 38/44, "older" 357 magnum, and "more recently manufactured" 357 Magnum.
The 38/44 has basically the same velocity as recently manufactured 357 magnum (the standard everyday ammo sold by the big companies).
Original 357 Magnum ammo (from the same big companies) is noticably faster.
Bottom line is yes, your M15-2 should handle todays' 38+P without any problem.
And no, I don't suggest anyone load 357 Magnums in a 38 Special.
JMHO, and maybe worth what it cost.