I have had at least a bakers dozen WSM’s - 270, 7mm & 300 in Winchesters (CRF and CRPF actions) and Kimbers. I still have a few in 270 and 7mm, mostly Montanas (along with a few thousand pcs of brass). None have had any feeding issues. All are/were accurate. All have performed great on game (not like the bullet knows what case it came out of…). I personally prefer them to standard long action cartridges.