Hello to all! I haven't been on for a while, but I saw this post and its a favorite subject so I thought I'd add a bit.
I am in general agreement with the desire to have access to a wider range of calibers in a pump action rifle. Anything that could move our big green friends in that direction should be supported. I would love a pistol caliber pump, think .357 or 44 Mag, carbine barrel length, a nice peep sight.....
As for alternatives...
Remington built Model 14 1/2 pumps chambered for 38/40 and 44/40 and a Model 25 chambered for 25/20 and 32/20 between the wars. I have a sample of each except the 38/40 and all three are fun, and useful. If you have ever handled a Model 25 and can imagine something with that feel firing those .357 Mag Leverevolution rounds that are now around, you'll understand the craving. (Granted, the frame size might need to be more akin to a Model 14 1/2, but remember, it's my dream.)
As for the 30/30.....
The Remington series of rimless cartridges designed originally for the Model 8 and carried into the Model 14 and 141 pumps of pre-760 fame, were direct counter parts for the equivalent Winchester rimmed cartridges. (25 Rem - 25/35WCF, 30 Rem - 30/30 or 30 WCF, 32 Rem - 32 Win Special) These rounds were essentially different only in the presence or absence of the rim and are not interchangeable as such. As for performance, they walk and talk just the same as their Winchester counterparts and much reloading data I've seen is shared. The noted exception to all this being the 35 Remington, built on a specific and larger case, likely the reason for its continued success. Model 141 rifles chambered in these rounds are commonally available on used gun racks in local shops and at shows. If you really crave 30/30 performance in a reasonably accurate, quick handling pump, find a 141 in 30 Rem an you will be fulfilled as long as you reload.
And for those of you, who like me yearn for a pistol caliber pump, let your voice be heard till the roar gets their attention.