I have bought and been loading the Pile-Drivers in my Marlin 1895GS rifle for sometime now my load gives me 1650fps at 10' from the muzzle.
I haven't shot any big game with this bullet yet but did have an experience that in a way I basically put my life on the line depending on the performance of this bullet.
On June 1 2008 @ app 9:15pm I shot an app 1000lbs interior mountain grizzly in Northern British Columbia with my 375RUM with 300gr Partitions the distance was app 230 to 250 yards.
About 20 minutes later we got to the spot that the bear ran into the thick bush and after only going about 10 yards into the thick stuff and due to how late it was we decided to stop and come back in the morning.
When we returned early the next morning I had my Marlin 1895GS loaded with 5 rounds of the Beartooth Pile-Drivers and my son had a short barreled 12 gauge 870 shotgun loaded with Brenneke slugs.
Along with our dog we started to trail the grizzly the bush was so thick that it was almost impossible to see my son who was only 8 - 10 yards from me and if we were lucky we could see up to 20 yards thru little windows in the bush.
Fortunately after only 75 yards we came onto the grizzly laying on it's back my shot the evening before had been as good as I could have made it and resulted in both lungs being destroyed and the off side front leg turned into a useless mess.
What made it so easy to go in after this bear for me was my total faith in the Pile-Driver bullets design and the smooth functioning that I have with it in my Marlin.
Thanks Marshall for the peace of mind that you gave me in this situation.
Here is a pic of the bear the size of the bear is deceptive in the picture though it actually measures app 8' from nose to tail and if it were to stand up on it's hind legs it would stand app 11 1/2' tall.
You can see a couple of the Pile-Drivers on the butt stock of the rifle.