my tikka t3 in 300 wsm comes in at 3000fps. my 300wm can hit 3100fps. no real difference. after having a 300 wsm for a few years i would go back to 300wm an my next purchace. no real difference but i like reloading 300wm more. its an easy cartridge to load up. i find the wsm to be pushing the limit at 3000ft. in the t3 line they all weigh the same so size of the cartridge doesn't really matter. i also have t3 laminates in 7mag and 338. great rifles. no feed problems and all acurate.