I used an inertia type puller until somone gave me 1000 reloaded rounds of 223.
I purchased a RCBS collet puller to pull the bullets.
The inertia puller does not work well with light crimped in bullets.
The collet puller left marks on 75% of the bullets I have pulled. I have not reloaded any to see if there is any difference in accuracy. I planned on using the pulled bullets for fire forming cases