Hey! What model is that Howa?
In the December 2002 issue of the American Rifleman (p. 85) is an Important Safety Notice concerning Howa rifles made between 1970 and 1993.
I just read it last night, while perusing the magazine.
In scientific parlance this is known as a "co-inky-dinky."
"Howa Machinery Ltd. of Japan is performing a safety upgrade on all Model 1500, 1550 and 1700LS series rifles manufactured between 1970 and 1993.
"The affected rifles bear serial numbers from one of the following series on the receiver: PN00010 through PN87159, LS00001 through LS05150, M000001 through M020422, LS10001 through LS10309, B000001 through B028450.
"The safety upgrade will replace the bolt sleeve to prevent misassembly of the bolt, which might occur on affected rifles. Such misassembly might result in a hazardous condition in which the rifle can be accidentally discharged without the bolt being fully engaged, causing severe injury.
"These rifles were distributed by Smith & Wesson, O.F. Mossberg and Sons and Interarms. These rifles may bear the distributor trademark.
"Stop using your rifle immediately and visit our website at www.regen.com/howa
or call Howa at 1-800-456-5131 to receive a Bolt Return Kit.
"Only the bolt sleeve is being upgraded. Your bolt will be returned to you after the upgrade.
"NO OTHER HOWA RIFLES ARE AFFECTED. CHECK YOUR SERIAL NUMBER