Pin drill in the hollow point to make sure they aren’t clogged and I’ve never had a Berger pencil on me.
That is very likely what happened on my one pencil through. Took a shell out of my pocket, and that hole may have been filled with lint. That and it went between ribs coming, and going...
If I recall correctly, the Bergers don't expand by having their HP open up like a typical HP but by having the hollow nose collapse and the integrity of the bullets comes apart at that point. This explains the 3" of penetration before they grenade.
That is correct. But if the tip was plugged,would that keep the bullet from imploding? I am not sure, but think it might, at least on a small critter like a coyote. As mentioned above the bullet that failed to expand, went between the ribs entering and exiting. Pinholes on both sides. Could have just been an anomaly too. Shoot enough critters, and you will see some weird things.
