cyphertext
US Veteran
Ummmhummm. And the prices and profit margin on the 15T are quite a bit higher than on the Sport. Moreover, it fits more closely with the perceived needs (which may be quite different from real world needs) of the customer for that type of item.
Despite how that plays into the comment above, wonder what the source of the "information" you read was and the reliability of same? Didn't really make a whole lot of sense to supply and entry level firearm with a specialized type of barrel.
I'll also note that while both the 5r rifling form and gain twist have theoretical superiority, gain twist has pretty much been relegated to a foot note in barrel making for litterally ages. I'm not sure what the status of 5r rifling is, but it doesn't seem to be shoving conventional or polygonal rifling onto the scrap heap of history. I do know the Spec Ops folks were pretty blase' about the "advantages".
I don't remember where I read it, may have been a response from S&W customer care on arf.com... or even told that by S&W when I called to ask about the barrels when the switch happened. But yes, they took the whole world by surprise by putting such a barrel on their budget gun.
As far as the gain twist, many of us have found that the barrel is actually more accurate with the lighter loads than heavier ones. Oneeyeopen was getting superb accuracy out of some 40 grain prairie dog loads, but groups opened up when he went to 62 grain and higher loads.
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