Originally Posted by linde

Well . . . sorta-kinda.

The 6" Masterpiece when introduced in 6/47 utilized the tapered barrel. In 2/49 the 6" Heavy Masterpiece was introduced. From 2/49 until 9/53 both versions were available . . . although most buyers preferred and bought the Heavy barrel. In 9/53 the tapered barrel 6" Masterpiece was discontinued.

In late 1949 the 4" Combat Masterpiece was introduced with and continued to use the tapered barrel throughout its production years.

Hope I've sorta-kinda answered your question,

Russ