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The Model 70 is without a doubt one of the most famous bolt-action rifles in history having developed a loyal following among American sportsmen during the peak of the rifle`s production.
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Please go to www.winchester.com and you will be able to enter your model number and there will be a viewable manual for this and there is also telephone numbers for tech support ok>
WINCHESTER MODEL 100 FIRING PIN RECALL – A notice dated 7-1990 relates the following
“PRODUCT SAFETY WARNING AND REPLACEMENT NOTICE. Attention owners of Winchester model 100
rifles and carbines please read this notice. In July of 1990 the following product safety
warning was issued by Winchester. It has come to our attention that the firing pin in the
Winchester Model 100 Rifle or Carbine may break due to use and metal fatigue and become
lodged in the breech bolt face. If this occurs, the firearm may fire before the action is
locked causing severe damage to the firearm and possibly injury or death to the shooter
WARNING DO NOT SHOOT YOUR WINCHESTER MODEL 100 RIFLE OR CARBINE. Repair and replacement.
A new firing pin has been designed to replace the firing pin originally made for the
Winchester Model 100 Rifle and Carbine. The new firing pins will be available in April
1991. If you own a Winchester Model 100 Rifle or Carbine, please send your firearm to one
of the authorized Winchester Model 100 Firing Pin Replacement Centers indicated below.
Your Winchester Model 100 firearm will be inspected, the firing pin replaced and tested
and the firearm returned to you. The inspection, replacement/testing and return postage
will be accomplished at no cost to you. If other repair or maintenance work is authorized
by you to be performed on the firearm when the firing pin is replaced, such work shall be
at your cost.”
W. R. Long Gunsmiths 2007 Brook Road North Cobourg, Ontario K9A4W4Canada Frank LeFever & Sons RD 2 Box 31Lee Center, NY 13363USA Bolsa Gunsmithing7404 Bolsa AvenueWestminister, CA 92683USA Nu Line Guns1053 Caulks Hill RoadHarvester, MO 63303USA
If you have any questions concerning this notice, call Winchester Product Service
1-800-852-5734 or write to Winchester Firing Pin replacement Notice, PO Box 10 Cottage
Hills Illinois 62018 Attention Product Service Dept.
The following is Wisner’s rendition & info on the subject.
The difference in the old firing pin and the new one is as follows. The old replaced
style, was totally lathe tuned (round). While the new recall style is similar in lathe
turning on the front and back, but in the front midsection it has two flats milled, one
on each side. This makes the center section stronger. Also replaced is the bolt sleeve
lock pin (firing pin guide) which was made to accommodate this different shaped firing
Part number for the new parts are, firing pin =1391ND, bolt sleeve locking pin =1491ND
The word was at the time this recall was in process was that if the firing pin would
break at the mid section and still remain in the gun as two pieces, the possibility of a
premature discharge before the bolt was locked was possible. This apparently was caused
by the firing pin tip (now not having a retracting spring) to be stuck forward, and
thereby slam-firing upon chambering.
The responsibility for the recall apparently was on Olin, as they were the parent company
at time of manufacture. Olin set up regional recall centers at three established US
gunshops. There was a manufacturing delay in the replacement firing pins, and a backlog
occurred, also some collectors did not like the idea of shipping their guns long
distances. Olin then also authorized other gunshops to make the required alterations.
Upon completion of the recall, the shops were to test fire the firearm and to stamp an
assigned letter on the inside top of the receiver as seen thru the magazine well with the
bolt retracted. The letter “B” represented Bolsa Gunsmithing, “L” was Lefever, and “N”
was for Nu-line Guns. The letter “X” apparently was for all the other independent shops.
However this identification information did not get communicated to some of the smaller
shops at the start of the project. The only way to tell if the gun as been modified, if
the ”letter” is not present, is to take the barrel & action out of the stock, remove the
trigger guard assembly and the try to rotate the firing pin by twisting it. If it does
NOT rotate, then the firing pin recall HAS been performed.
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Back to Additional information To Winchester model 88 & 100 parts
Originated 01-13-2001 Last Modified 03-19-2007LeeRoy Wisner