l've always found collet type pullers do damage to the bullet, when pulled they dont seem round
l dont use the hammer pullers because l have broken them and went onto different type of puller
with a big case like the 375H&H l would be just putting the case in the press raise the ram and pull the bullet lowering the ram with pliers holding the bullet after wrapping something around it and maybe cover the pliers jaws with a few layers of masking tape ect... to make soft jaws
no matter how its done they are seconds really because they have been fitted and pulled
the cases are worth a bit so maybe sell the cases with pulled bullets, your mate will get good money for them
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