A side issue to the pinned barrel question.
If you compare an older S&W revolver with a Colt revolver you will find the barrel on both revolvers is screwed into the frame but the S&W barrel has a pin through the upper part to prevent it from unscrewing. The Colt on the other hand has a "crush" fit. The pin costs a bit more (Hence S&W has dropped it.) but it avoids distorting the rear of the barrel as the crush fit does. Supposedly the pinned barrel will be more accurate all else being equal. Now in comparing the S&W to the Colt this difference is probably lost in the noise, but in this latter time we know how to build a revolver that will produce minute of angle accuracy and such points would matter.
of course, for some obscure reason, it is not S&W or Colt that one goes to for a minute of angle revolver.
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