Two POSSIBLE sources come to mind (the 146B has been out of production for a long time now) gunpartscorp.com, which is Numrich Gun Parts, and havlinsales.com. Vic Havlin runs the Mossberg Collectors Assoc, and is pretty much THE man for anything Mossberg. And yes- ANY bolt should be checked by a smith for correct headspace when replacing a factory bolt. Having bad headspace can be dangerous on ANY firearm.
The Mossberg and Sons Model 146B was manufactured in 1954-1958.
Made from 1949-1954, the Mossberg 146B is a tubular magazine bolt action repeater. It holds 20 LR cartridges, or 30 Shorts. Very nice rifles.
Gun show, gun shop, want ads, garage sale, pawn shop and yes.
Serial numbers were not required before 1968.
With the exception of taking the action out of the stock, and the bolt out of the action- it is not necessary to disassemble the 146B. If you have taken more things apart, would suggest you take it to a gunsmith. There are no manuals for the 146B due to age.
try egunparts
The "manual" for a Mossbery 146B(a) consists of a one page sheet, which is in the link below.
35-100 USD
Depending on condition and originality/ completeness, anywhere from $100 to $250 for a like new specimen.
Depends on condition and completeness. The rifle had 3 sights- front, rear barrel, rear receiver, and Mossberg quick detach sling swivels. If sights or swivels are missing, they are expensive to replace. Well worn specimen $100, excellent complete specimen $250-$300. Active collector interest in Mossberg 22s from this period. (Nice rifles- have 2 of them)
Gun shops, gun shows, want ads.
instruction line 146b 1040b