Possibly to much neck tension?

[bearhunter]

A collet puller is simple to use, fast, and does not damage bullets if the bullet is given just a tiny nudge deeper with the seating die first. You can often hear the crack as the bullet breaks free from the case during the nudge deeper.

As well, there is no problem recovering the powder from the case. No mess, just take it out of the shell holder, and pour it into a container.

Ted

That really depends on how long the ogive is. Some bullets don't have much, if any bearing surface visible above the neck for the collet to grasp tight enough to pull, even if you break the weld or in some cases the sealant.

 

[dead meat]

Finally got them all pulled, a real fight. Most of this batch of brass is old and fired many times. I dropped a primed case on the loading bench and the primer backed out half way, time to replace this stuff. Fortunately i have 250 once fired cases waiting in line to be prepped.

 

[Al Bear]

Sorry but I have pulled literally thousands of bullets using an inertia puller on the concrete floor and broke exactly one in 45 years of doing it. I'm in to 20 years on my current one (RCBS all plastic model) and it's still going strong. Concrete is no worse on it than any other hard surface.

Ditto here. But I always strike on a piece of 2 x 4 so my 20-Y-O RCBS puller is still going strong. And pulling light bullets also takes me about 15 whacks.