I asked the same thing on the rossi forums about the strange model numbers.
Model 67 appears to be an Aussie domestic import label applied just the last year or two for what is the standard Model 1892 by Rossi.( Edit, this was corrected by Pomemax below, while it is indeed the same 1892 for a while it was released as other model numbers)
I own a rossi 1892 in 357 too, which was marketed as the model Rossi 1892 when I got it. I can never remember the correct order but they have been named Taurus and Puma at various times as well. As mentioned they can be great or a bit rough, and its usually trial and error whether they will feed the shorter 38 specials or very wide meplat flat points. I got lucky with mine and it feeds everything. If they won't feed 38 special and you are using that brass you can just seat the bullet out to match the longer 357 loaded length. There is a 1892 guru in the US as mentioned above who puts out a DVD on smoothing Rossi actions if you want to turn one into a cowboy action race gun. 38 special loads or 357 loaded down you can load cast bullets from 750-850fps with just 2-3 grains of powder which is not much louder than 22LR.( CCI stinger in 22LR for example has 2.6 grains of powder in the case for comparison)
The barrel lengths are 16, 20 and 24" . Capacity is 8, 10 and 12. The 16 and 20 are round barrels and very lighweight guns, the 24" is a heavy octagonal, unhistorically heavy for the record as modern versions do not have the taper of the originals, and are quite muzzle heavy, The bigger calibres take some meat out of the octagonal barrel which keeps weight down. The 24" parallel sided octagonal in 357, which I own, is quite a muzzle heavy little pig.
The twist on the rossis is slow, aka 1:30 for all calibres( marlins are even slower, the win 1873's are faster at about 1:18), so the rossies will prefer bullets on the lighter side of 180 grains the best. I believe the barrel is internally.356 and with the often insane variations between lever action brands, ( some 44's vary from .429 to .434 for example) the rossis are pretty good in this regard.
The main advantages of the action are its slim lines, being about the lightest and handiest lever action, and extreme action strength, probably the strongest lever action. The yanks have pushed this action to 50,000PSI, 158 grain bullets into the low 2000's, knocking on 30-30 territory. The action was also used for a limited run of 454 casull, an even higher pressure cartridge and a limited run of 100 units of 480 ruger. The other calibre it comes in is 44 mag/44 special. For cowboy shooting rapid fire its rated as slower than model 94's, faster than model 73 's stock, but of course with a short stroke kit the 73's will clean everything up.
For those zombies takeovers, you will see on the yank survival forums the rossi in 357 has a fair showing of votes after stuff like AR's. Slimline, very light, quick handling and matched with handguns in the same calibre. 357 is only slightly heavier than loaded 223 but packs tighter than 223 in ammo cans so you can carry about the same in the field.. Its under 2/3 the loaded weight of 308..Also as mentioned for small game loads like an oversized 22LR you can load 2.5 grain loads and cast bullets so its near 3000 rounds to a pound of powder. Case life into the dozens of firings at such low pressure. This load is still equivalent to 38 special handgun so its no pushover , still able to kill people sized....well zombies
John wayne was a big fan of the model 1892, and as a result he carried it into movies depicting earlier eras than 1892. Some of the yanks even joke the Model 92 is the gun John Wayne won the civil war with.