308/12
There's more:
410/22 LR
410/22 WMR
12/223 Rem
12/308 Win
12/30-06 Sprg
Remington does make a combo shotgun rifle, the Model SPR94.
They made them in four calibers. 25 Remington, 30 Remington, 32 Remington & 35 Remington. The 25 & 32 are obsolete, the 30 was still available in the 80's & the 35 is still available at your larger sporting goods stores. There are dozens of custom reloaders that will still supply ammo for any of these calibers.
Remington produces lever action rifles primarily in calibers such as .30-30 Winchester, .45 Colt, and .357 Magnum. These calibers are popular for various applications, including hunting and sport shooting. The specific models may vary, so it's essential to check the latest offerings from Remington for the most current information on available calibers.
Remington O/U rifle/shotgun combo. 22 mag on the top barel, .410 shotgun on the bottom barrel.
Currently, Marlin's website lists .25-06 Remington, .270 Winchester, and .30-06 Springfield as the only available calibres for the XL7.
Remington.com has a list
depending on what you want to know the Remington model740 is the previous model b4 the Remington 742 they were chambered in many calibers for deer hunting and had a 5 rd clip
The Remington Model 6 was produced from 1905 until around 1930 in .22 and .32 rimfire calibers. Some variations had smooth bore barrels that fired shot loads in the previously mentioned calibers.
The Remington 700 is a model number. It is chambered in different calibers. The 30-6 being one of them.
I know it was available in these calibers 44.40 38.40 32.20 .25 I have a Marlin Saftey 38.55 Model 1889 Octagonal (95154)
The original IZH94 from EAA/Baikal was 1/12. http://www.predatormastersforums.com/baikal.html One could surmise that the SPR94 is the same.
Around 50 different calibers, anything from a .17 Rem to a 458 Winchester mag.