That's right the 29-3 engineering change got rid of pinned and recessed and went to a 6" barrel. In may of 78 I bought a new 29-2 6.5" blued. 11, 000 rounds later in July of 79 the barrel needed to be replaced. I sent it back to Smith and Wesson they took care of it but told me that they replaced it with one of the last 6.5" inch blued barrels they had and next time it would be a 6". So maybe it is a 29-2 that has had the barrel replaced? Mb
