น่าจะใช่Colt 357 นะครับ...ลองอ่านดูข้างล่าง...แต่เป็นภาษาปะกิดนะครับ...
In 1953 Colt introduced two new guns: The Colt Trooper, and the 357. (357 was both the NAME and caliber of this model).
The 357 was available ONLY in .357 Magnum, while the Trooper was available only in .38 Special and .22LR.
The Trooper had the firing pin mounted on the hammer, and was really not much more than an Officer's Model Match with a different barrel and a less polished finish.
The 357 had the firing pin mounted in the frame.
In 1955 Colt introduced the Python, using the same frame as the 357 and this complicated things at Colt.
Colt was producing the Trooper, the premium 357, and the Super-premium Python.
The problem was, people wanting the best bought the Python, and the police and people wanting a cheaper gun were buying the Trooper.
So, in 1961 Colt discontinued the 357, and started making the Trooper .38 Special on the 357's frame with the firing pin in the frame for the center-fire models.
What Colt actually did was stop making the old Trooper frame, and started chambering the 357 frame in BOTH .38 Special and 357 Magnum.
