I recently bought a threaded barrel from S&W for my M&P 9mm CORE 4.25"
The threaded barrel is a 1 in 16 twist
The non-threaded barrel is a 1 in 10" twist
The threaded will NOT stabilize a 147 grain load
A phone call today to customer service left me with no option to refund, replace, or even sell me an alternative.
I asked to buy a 5" CORE barrel with the updated tighter twist to thread myself. They won't sell me one.
I REALLY wanted this to work, but The aftermarket barrels are listed as 16" twist
If someone has a solution, I'm all ears.