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Jeff –
Do you know approximately when the model 75 front sight ramp went from integral to the brazed sight ramp?
My 75 is serial number 77355 with a brazed sight ramp. It has a Lyman 57 ES receiver sight with a filler in the rear sight dovetail.
Marked Sporting on the trigger guard. RR
Win61 said
Jeff –Do you know approximately when the model 75 front sight ramp went from integral to the brazed sight ramp?
My 75 is serial number 77355 with a brazed sight ramp. It has a Lyman 57 ES receiver sight with a filler in the rear sight dovetail.
Marked Sporting on the trigger guard. RR
Hi Win61,
It is not a perfect transition but here is the exact sentence from the upcoming book on the Model 75 – “Front sight base changed from the original integral forged base to a machined separate base silver-brazed to the barrel per the drawing dated 8/16/50, however the actual change occurred later in production, circa early-1954 near serial number 76,000, although a few forged front sight bases are found on later receivers up to serials near 81,000.“
Your rifle front sight seems to be correct. Hope that helps.
Best Regards,
WACA Life Member #6284 - Specializing in Pre-64 Winchester .22 Rimfire
Jeff
Question- the S/N on my 75 is 77355. The 4th edition of the Red Book shows the rifle as 1951. The quote in the upcoming book on the front sight change from integral to brazed ” circa early-1954 near serial number 76,000″. Is this S/N 76,000 made in 1954?
As you can tell I am confused. Am I missing something? RR
Win61 said
JeffQuestion- the S/N on my 75 is 77355. The 4th edition of the Red Book shows the rifle as 1951. The quote in the upcoming book on the front sight change from integral to brazed ” circa early-1954 near serial number 76,000″. Is this S/N 76,000 made in 1954?
As you can tell I am confused. Am I missing something? RR
Yes, serial number 76,000 was made in early 1954. The 4th Red Book was missing the original polishing room records which are available from Pauline Muerrle. The original dates of manufacture listed in the 4th edition of the Red Book were based on the Madis numbers which were estimated (but skewed for various reasons). Your receiver was in the polishing room in mid-1954 and for a very small fee Pauline can give you the date from the Winchester factory polishing room records. https://paulinemuerrle.com/factory-engraving-records/
Bert has now updated the WACA date lookup feature to reflect the correct dates for the 75 based on the polishing room records. If you input your serial number here: https://winchestercollector.org/dates/ it should now give you the correct year date.
Previous research was not necessarily in error, it just gave the best estimate of the time. Subsequent research data always refines and improves previous work and, at some point in the future, I expect my work to be improved by someone also. We just need to put pressure on Bert to publish the updated 5th edition…… 😉
Best Regards,
WACA Life Member #6284 - Specializing in Pre-64 Winchester .22 Rimfire
JWA said
Win61 said
Jeff –
Do you know approximately when the model 75 front sight ramp went from integral to the brazed sight ramp?
My 75 is serial number 77355 with a brazed sight ramp. It has a Lyman 57 ES receiver sight with a filler in the rear sight dovetail.
Marked Sporting on the trigger guard. RR
Hi Win61,
It is not a perfect transition but here is the exact sentence from the upcoming book on the Model 75 – “Front sight base changed from the original integral forged base to a machined separate base silver-brazed to the barrel per the drawing dated 8/16/50, however the actual change occurred later in production, circa early-1954 near serial number 76,000, although a few forged front sight bases are found on later receivers up to serials near 81,000.“
Your rifle front sight seems to be correct. Hope that helps.
Best Regards,
And we’re all waiting with bated breath for your new book. 
JWA said
Win61 said
Jeff
Question- the S/N on my 75 is 77355. The 4th edition of the Red Book shows the rifle as 1951. The quote in the upcoming book on the front sight change from integral to brazed ” circa early-1954 near serial number 76,000″. Is this S/N 76,000 made in 1954?
As you can tell I am confused. Am I missing something? RR
Yes, serial number 76,000 was made in early 1954. The 4th Red Book was missing the original polishing room records which are available from Pauline Muerrle. The original dates of manufacture listed in the 4th edition of the Red Book were based on the Madis numbers which were estimated (but skewed for various reasons). Your receiver was in the polishing room in mid-1954 and for a very small fee Pauline can give you the date from the Winchester factory polishing room records. https://paulinemuerrle.com/factory-engraving-records/
Bert has now updated the WACA date lookup feature to reflect the correct dates for the 75 based on the polishing room records. If you input your serial number here: https://winchestercollector.org/dates/ it should now give you the correct year date.
Previous research was not necessarily in error, it just gave the best estimate of the time. Subsequent research data always refines and improves previous work and, at some point in the future, I expect my work to be improved by someone also. We just need to put pressure on Bert to publish the updated 5th edition…… 😉
Best Regards,
JWA,
Thank you for the clarification on the date of the mfg. I did not know that some of the dates in the Red Book were in error.
Do you know the approximate date when the grooved receivers were on the 75s?
Thanks again Jeff. Can’t hardly wait for your 75 book. RR
As Jeff mentioned, the DOM information in Chapter 8 of The Red Book was not solely based on the Polishing Room records. We prefaced Chapter 8 in the last paragraph on page 413 with this statement;
“Chapter 8 presents serial numbers and dates of manufacture. This list is the most accurate list in print and the bulk of the information is taken directly from the production journals of Winchester. The numbers and dates were directly recorded by hand by the craftsman who was responsible for the assembly of the gun. Therefore the information is as accurate as it could possibly get. The information obtained from the Polishing Room Records can be identified by the bold and italicized entries in the following chapter.”
Please note that the majority of the information for the Model 75 was not in bold italicized text.
Bert
WACA Historian & Board of Director Member #6571L
Win61 said
Do you know the approximate date when the grooved receivers were on the 75s?
The Model 75 grooved receivers commenced in early/mid-1954.
Another book excerpt – “Grooved receivers began appearing on the Model 75 around serial number 76,000 and were intermixed with un-grooved receivers until approximately serial number 77,600 when all receivers thereafter were grooved.”
Best Regards,
WACA Life Member #6284 - Specializing in Pre-64 Winchester .22 Rimfire
November 7, 2015
Online
Bert H. said
As Jeff mentioned, the DOM information in Chapter 8 of The Red Book was not solely based on the Polishing Room records. We prefaced Chapter 8 in the last paragraph on page 413 with this statement;“Chapter 8 presents serial numbers and dates of manufacture. This list is the most accurate list in print and the bulk of the information is taken directly from the production journals of Winchester. The numbers and dates were directly recorded by hand by the craftsman who was responsible for the assembly of the gun. Therefore the information is as accurate as it could possibly get. The information obtained from the Polishing Room Records can be identified by the bold and italicized entries in the following chapter.”
Please note that the majority of the information for the Model 75 was not in bold italicized text.
Bert
I noticed that with the 75 that tried to follow me home recently. Estimated date in the Red Book was close but I did bounce back and forth a bit long enough to jog some memory cells into action.
Mike
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