Oh ya, I have a set of all one type. A full compliment of bolt action Mausers, controlled round feed, long extractor, slim walnut stocks and full contact bedding, with quick detach fixed power scopes. In .222, 7x57, 8x57, 7x64, and .375 H & H.
But then I decided I needed a set of modern push feed action bolts, with free floated barrels and variable scopes and adjustable triggers. So I have those in .22 RF, .22 mag, .22 hornet, .222, .243, .308, 30-06, and 35 Whelen.
Then I decided I would need a set of good lever action rifles with receiver sights and tuned up slick actions and good crisp triggers, have those in.22 rf, .38/357, soon to be .44 mag, and 45-70.
And then I decided that no hunt was complete without a high quality German combination gun and so I added a O/U in 16 ga over 7x57R, a drilling in 16x16/7x57R and another drilling in 16x16/8x57IR.
I have to work on the set of single shots, only have a lonely Ruger #1A at the moment...
and i didn't mention the shotguns, or the muzzleloaders, whew! this using only one kind of gun is a workout!