Crosman offers a free service to locate repair shops that repair older model Crosman airguns. see the link below.
the CS6M22X I believe is the .22 version of the Crosman Phantom .177 cal rifle. See the link below for the .177 version of the parts list.
This is known as the repeatAIR not repeater. It's the Crosman model 1008 You can find the parts diagram for all Crosman's weapons on their web page. (See the related link at the bottom of this page) then click on Rifles or Pistol manuals
The Crosman 357 is modeled after the COLT PYTHON. If the Python fits the holster, then the Crosman 357 may also fit. Your just going to have to try it.
Go to (See the link below) and find your parts and owners manual for your gun or rifle. Crosman keeps a web page for older airguns.
Crosman corp has schematics and some parts available on-line through their home page. Click on the link below and when it opens, at the bottom of the page, click on "Download a manual." There you will find the information you are looking for.
The Crosman model 761XL is designed to shoot BB's or any .177 Caliber pellet. These are the most common pellets you can find. Make sure you select .177 Caliber pellets.
The Crosman Phantom is designed to shoot ONLY .177 pellets NOT BB's, they will ruin the rifling in the barrel.
The Model 73 "Saddle Pal" was made between 1976 - 1983. Crosman no longer has parts for this model. However they offer a free service to locate shops that repair older Crosman air guns & rifles. See the link below BTW it shot both BB's or .177 pellets.
They are both the same size. .177
You have two choices. First: Crosman has the parts manuals online along with the owners manuals. (See the links below) there are several versions of the 760 so look at each one to find yours. Then contact Crosman for the parts you need if they are available. (Customer contact.) Second: If you have no luck with that, Crosman offers a free service to locate shops that repair old Crosman products. So see the 3 links below.
I suggest: JSB diabolo, Crosman premier, predator polymag see: http://www.pyramydair.com/pellets
Crosman still makes replacement parts for this airgun. See the link below