Took the 45-120 out for a spin with some real heavyweights today. Unfortunately they weren't stabilized 100%, but they weren't keyholing. At 50 yards they hit below point of aim, but perfect windage, not sure if it was me, but they should be dropping more than the 405 grain bullets I normally shoot at 2550 fps.
Here's the recoil, sorry for the crappy cell phone video. I was shooting at the log that falls off the hay bale after being shot.
http://s64.photobucket.com/albums/h190/tykempster/?action=view¤t=268.flvI had a piece of cardboard on the front, and the hole was slightly oval. Penetrated 20" however, not perfectly straight though. Stopped just short of the end of the log in a knot, and did not stay together at all. I was told these bullets would act like a solid, but I guess 1750ish fps was beyond what they were designed for?
I split the log and dug out all the lead I could find, it left a nice streak in the wood that made it simple to find the bullets. Here is what I found, with the largest piece making it about 20", the second largest piece made a separate channel and went about 18", and took the gas check with it.
Don't think I need to get any more of these bullets since they don't stabilize, I was expecting much more penetration, but I guess 20" is impressive for a bullet that wasn't even flying true.
720 grains @ 1750 fps kicks MORE than 405 grains @ 2550 fps. Load was "XX grains of Powder A".