Yes, believe it or not, Chapters do carry some books about guns (and even war, too!
) but their policy, generally, is certainly idiotically "PC"!
The more exact terminology on such military-style rifles is "musket stocked" - referring to the full forestock, of course - with the rifle then being commonly referred to as a "musket" or "musket-style" ...
There is a very strong Canadian connection with musket-stocked Winchesters - as others have already mentioned. The standard-issue longarm of the NWMP/RNWMP which had the longest service life of any rifle (from 1878 through 1914) was a musket-stocked Winchester Model 1876 chambered in .45-75.
Here is one period photograph showing NWMP officers and men (the latter posing with their Winchester rifles) when they were in London in 1897, for the occasion of Queen Victoria's "Diamond Jubilee":
And here is an image of the "California-style" saddle which also went into use by the NWMP in 1878, showing the regulation manner of carrying the rifle:
Quite a few of this same model of rifle were also acquired by the Dept. of Militia & Defence, and many of them were issued to provisional mounted militia units raised for the 1885 North West Rebellion. One such unit was the original Rocky Mountain Rangers (no connection with the present-day infantry unit of the same name) which was a "cowboy cavalry" unit raised in and around Fort MacLeod, in the District of Alberta, NWT, two Troops of which were then posted about 150 miles east to Medicine Hat, Dist. of Assiniboia. (Our local Cowboy Action Shooting club is named after them - for more info on them, and the 1885 Rebellion genrally, visit my website: link in my signature block, below.)
I have a "look-alike" rifle in the process of being finished for me by a gunsmith, for use in Cowboy Action shooting, and also "just for fun". It is built up on an original Model 1873 action (because it must be in a "pistol caliber" for my purposes) and is chambered for .45 Colt. Here is a picture of it in the very-nearly-complete state it was in this summer, when I took possession of it for "initial trials". (It has since gone back to him for some fine-tuning and final finishing ....)