Winchester Primers

d'Artagnan  over on the Maryland Shooter's forum, same person I got my box dating information from, has detailed information about dating early Winchester primers. Much of the below information is taken directly from his research. I am going to share some of this information for use with the 44-40 cartridges. Please support his work by visiting the link provided for more details.

No. 1 W

1895-1905

Nitro - Slow Burning Smokeless powder

W inside a circle

From these Green "Waterproof" Labels Above with fancy fonts

2nd Style, 1st Variation

 block letter WINCHESTER, and WINCHESTER with serifs 

prior to dated labels, "Licensed for repriming only", 

3rd Style or 2nd Style, 2nd Variation

 "WINCHESTER" in small quotes

prior to dated labels, "Licensed for repriming only", 

4th Style

block letters or with serifs

"Licensed for repriming only", dated labels 8-6 to 10-9 observed lower right, 4 digit index numbers lower left, first punched dots lot numbers on labels dated 10-9, W printed on ends whether primers for smokeless powder or black powder,


The following boxes now show the "Improved" call-out on the box label but still show the Oct 1st, 1878 patent.

No. 1 W

1906-1914

Change from "Nitro"

 to "Smokeless" Powder

Nov 1906


July 1910

5th Style

WINCHESTER

(1914-1927)

Some boxes show the "K"-prefix 4-digit index numbers -- different from the old four-digit index numbers -- on box ends, W printed on ends, "MADE IN U.S.A." or "MADE IN UNITED STATES OF AMERICA", Labels dated 1-20, 3-23, and 6-26 with "K" number K1101P. The primers in the 6-26 box are not impressed with a W.  Last of the copper primers until recent years.

No. 1 W

Smokeless or Black Powder

1914 Smokeless Lead

Division Of Western Cartridge Company

6th Style

 Post 1927

Last of the Copper Primers

after dated labels, K-prefix 4-digit index numbers, punched dots lot numbers, no W on box ends, SOLD FOR REPRIMING ONLY, no mention of non-mercuric or non-corrosive.

As a recap, lets review the primers offered by Winchester through 1895

By 1875 


By 1891

No. 1 Winchester Improved Primers

No. 1 1/2 Winchester (same as No. 1 but thinner and more sensitive)

No. 2 Winchester Improved Primers

No. 2 1/2 Winchester Improved Primers (same as No. 2 but thicker and less sensitive)


By 1895


By 1925

1928-1939

No. 111

Non-Mercuric


1940-1950's

K1611P (No. 111)

1950's-1950's


1959-1970

K4003P


K4003P - 3 Oct 1966 - XL3L65


1974-1977

Winchester-Western 1976 Catalog

LAL293 = Jan 1976 (L=76, A=Jan)

1983-1996

1991

2006-Present


Western