Archer Arms on Rt. 58 in Carver MA.
You won't find a more down-to-earth guy than Joe Mcann (McCann?), the owner. A small shop, and a great atmosphere. He'll get anything you want if you have the time for waiting for it to arrive. Also, he carried the full line of M&M Reloads from NH, which is very decent ammo at very decent prices. For example, a box of 25 reloaded .500 mag ammo, 350ish grain FMJ is about 45 bux.
And if you poke him in his big belly, he giggles.
But he has to be in a good mood for you to get away with this, since he's like a 28-year veteran of a local PD, and is sometimes grumpy.
lol!
P.S. Two thumbs up for Four Seasons in Woburn, MA. Carl Ingham is just like Joe, but he's busier and has a shop dog. Hehe.