Weatherby Japanese Semi-Auto Shotgun
This will cover the Patrician, Patrician II, & 92 semi-autos
made from 1972 thru 1989
discontinued & have been for years, with most parts being obsolete.
The semi-autos were a parallel
gun to these pumps, as they utilized many of the same parts. All
these guns have the model designation engraved on the LH side of the receiver.
may want to take a look at the exploded views page
HERE as much of the nomenclature used by Weatherby on these
guns do not match what we normal associate with US made forearms.
The one part that seems to give the most trouble, is the slide
bar will break, and
usually is not successful. The main reason
I believe, is that there was no provision for a recoil buffer in this
firearm. Also we have found that possibly on a batch of slide arms
that the factory may have manufactured them by cutting the material cross grain
instead of with the grain of steel, resulting in a weaker part.
firearms were made by 2 different manufacturers, with even a phase-in / phase-out
overlap. We have not been able to find any differences in parts between
the 2, as the firearms appear identical except the serial number prefix.
Inc. 306-748-4590, is making replacement Patrician / model 92 slide assemblies.
They are different than the semi-autos in that they are longer and are
threaded on the front to accept the magazine nut.
Wisner's also make locking blocks, extractors, firing pins,
etc. for these firearms, and some other discontinued Weatherby models.
|Weatherby Patrician & Patrician II|
model pump was a companion to the semi-auto firearms of the same time
frame. Many parts were the same and interchanged where
possible. It also had a gold plated lever that was in the same
location as the Centurion's rear trigger plate pin and acts as a slide lock.
one difference was that the slide assembly was longer, threaded on the
front to accommodate the pump handle nut. Also on the side
slide arm, it was angled slightly which acted as a slide stop when the firearm
was closed and locked up for firing.
guns used a aluminum receiver, ventilated rib barrel, had a nicely
finished checkered walnut stock that had a white line spacer between the
rosewood grip cap. The locking system and operating handle was
quite similar to the Remington 870. Fixed chokes in the
forearm front was counter-bored to accept the magazine cap so the cap was not
protruding from the wood. The magazine cap was knurled so it could be
tightened, or removed when the pump handle was retracted.
Patrician Action Slide Bars ; The Patrician
needed a LH slide bar that was angled off on the rear to act
as a slide stop.
the need for 2 different bars if the factory was to use them in conjunction with the
Centurions in production.
Later they simply used the angled Patrician bars on both the guns. The
Patrician series had an additional milled cut in the bottom of the RH bar to
activate the cartridge cut off.
slide tube was 7.50" long and threaded on the front to match the magazine
|Top is a good Centurion, bottom is a broken one off a model 92||Patrician trigger group assembly, note tab on RH end of lifter|
|Bottom view of carriers||Top view of carriers|
In the above LH photo, it shows a broken model 92 on top with a original one on the bottom. The part that is broken on the 92 is the thin web that is missing on the upper RH part of it. The Patrician did not have this milled out slot so was stronger. The reason for the slot was that the 92 lifter (the metal part that raises the ammo up to the chamber) had a tab on the front RH side to keep the live ammo from falling out if the shooter was shooting at a high overhead duck. This tab held the ammo in the action as the action was being operated, before it got far enough closed so the ammo was entering the chamber. Therefore this slot was needed in the carrier to give clearance for the lifter so that ammo could be loaded into the magazine tube. The RH photo shows the same parts, shown in same sequence as on the LH photo, except from a top side view
Patrician II ;
Patrician IIs have the same receiver configuration as the regular
Patrician and will have that model engraved on the LH side of the
receiver. Internally they are basically the same as the regular
Patricians, with the exception of an ejector that can accept 3" ammo.
were made in either 2 3/4" or 3" barrels.
The ejector is slightly different than the regular Patricians in that it's tail
was shorter by .200.
The reason for the shorter ejector tail was apparently because these guns could
have been had in 3", this one part could function for either depending
on the barrel it was fitted with.
Model 92 ;
The model 82 semi-autos were introduced in 1982, the thought as these
companion guns that the next step up seems logical that they just named this
model the 92. These
a counterpart to the then current model 82 it used the same configurations of
the receiver and buttstock
These were made in either 2 3/4" only or 2
3/4" and 3" chamberings, with screw in
chokes while still using the ventilated rib barrels. The screw in
chokes were installed into a swaged up bore to accept the threading for these
chokes. These barrels could have been had from 26" to 30", the muzzle was swaged from about .830" up to .905" at the muzzle
where they were threaded for the screw in chokes.
92 receiver was
again made of aluminum and was slightly modified to a semi
were pretty much the same configuration and design as the Patrician series
however they appear not quite as bulky. The forearm was shortened allowing
the magazine nut to protrude forward, which made it easier to take down as
compared to the Centurions.
The above model 92 was fitted with aftermarket sling swivels, which was not a factory option. Note the gold colored slide release lever just above and behind the trigger.
|Year||Mfg Weatherby model Serial Number range Gauge|
|1972 - 1974||KTG Centurion Auto AO00001 - A07405 12ga 2¾”|
|1973 - 1975||Nikko Centurion “ NA00400 - NA10091 “ “|
|1976 - 1979||Nikko Centurion II “ NA10884 - NA17754 12ga 2 ¾”|
|1976 - 1979||Nikko Centurion II “ NA10884 - NA17754 12ga 3”|
|1979 - 1981||KTG Centurion II “ A17755 - A18878 “ “|
|1982 - 1989||KTG 82 Auto 82-00001 - 82-11527 12ga 2 ¾”/3”|
|1972 - 1976||KTG Patrician Pump SO00001 - S05089 12ga 2 ¾”|
|1973 - 1975||Nikko Patrician “ N00001 - N00011 “ “|
|1973 - 1975||Nikko Patrician “ NS00500 - NS12863 “ “|
|1976 - 1981||Nikko Patrician II “ NSI2922 - NSI8148 12ga 2 ¾”/3”|
|1982 - 1989||KTG 92 Pump 92-00001 - 92-11990 “ “ “|
Originated 01-15-2006 Last updated 12-17-2014
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