Marksman #1780 Rifle

Having trouble finding any information on this particular air rifle .

Hi Muzza, a little bit of chatter here, not much though :-)
https://www.spudfiles.com/viewtopic.php?f=29&t=13379

Been getting chat gpt to do some research on it.
Can you post picture of the box, gun,gun markings and serial number and I'll reopen the conversation. Its been quite interesting so far but not over fruitful.
Relevant info ive found so far and edited ( ive been exploring avenues but the lack of specific info is a bit of a hassel as there seems to be very little info)

Import & Collaboration History of Marksman Products
According to historical records, Marksman Products did not necessarily build all their own air rifles — they often imported or sold airguns from other established manufacturers under the Marksman brand name:
Blue Book of Gun Values

Imported/Distributed Brands

Milbro (Scotland) – Marksman imported and sold some Milbro airguns, including pistols.
Blue Book of Gun Values

BSA (England) – They imported air rifles from BSA and included them in their product offerings.
Blue Book of Gun Values

Weihrauch / BSF (Germany) – Spring-piston rifles from this respected German maker were also brought in and sold by Marksman in the U.S.
Blue Book of Gun Values

Anschütz (Germany) – Some precision rifles were imported under Marksman’s distribution.
Blue Book of Gun Values

So rather than Marksman co-designing or co-manufacturing models with other companies, they generally:

Imported foreign-made rifles and sold them in the U.S. under the Marksman brand or as exclusive distributor models.

Also manufactured their own spring-piston and break-barrel airguns (especially older / simpler designs).

Eventually became part of S/R Industries, which also acquired Beeman Precision Arms — another well-known airgun brand — in the early 1990s. Those Beeman rifles were often imported and marketed in the U.S. but built in Germany before the acquisition.

Morton H. Harris was the founder and early driving force behind the American Marksman brand.
bluebookofgunvalues

The Marksman Model 1780 was almost certainly produced in the period from the late 1970s through at least part of the 1980s.

There’s no exact documented first or last production year readily available in published sources — but the model number range and the fact that it appears alongside other 1970s/1980s Marksman catalog listings makes that timeframe the most consistent with its appearance on the market.

first attempt at posting images

Hey can you get the rest of that pat number and ill get gpt to do a patent search on it. Dont need pic for it just number

All good. More questions when you got time.
Is the stock plastic?
Is there a number on the left hand side of the receiver?

Where im at. The 1780 is a refrance to the orignal pcp gun from 1700s
(Which just thinking about it, ill see if there is a model 80. Could be that 17 is just the tribute)
It may be printed on all 17xx guns.
Got gpt to search model numbers on marksman guns and apparently its on left of receiver near back somewhere.
I'll follow the model 80 thought and see if it produces anything.