In an article ('Favorite Lever Guns and Their Loads') in 'Lever Guns' by 'Rifle' magazine, Layne Simpson discribes the Model 88. It had a bolt with three rotating lugs that locked into a set of recesses in the front of the receiver. It was chambered for the .243 Win, the .308 Win, the .358 Win and the.284 Win.<BR> I'm not sure what the .300 SWM pressure levels run to, but I'm thinking these four rounds are considered modern high intensity cartridges.<P>El Lobo in NM<BR>