Originally Posted by MT4XFore
I recognized Canyon Ferry even without the silos. I know you are having great success with the Hybrid Berger's, but aren't you loading them at a very conservative velocity. The problem comes when they are kicked in the butt a bit harder than you are I think. Kirby, Shawn and several others were not able to get them to group after about 2900 fps if I remember correctly. Aren't you shooting them right at 2750? I sure would like to drop down and visit sometime, do you work in town?
Jim, My chrono says 2820 but I know it is about 30 ~35 FPS fast. Its a cheepy. Both the EXbal and LB3.0 drops match up great with a MV of 2785 and a G1 BC of .820 Berger says .818 so I feel I have found what they are doing from my rifle.
One more grain of H-1000 and I get cratering of the primer , a slight ejector pin shadow, and a firmness of the bolt lift. So, I feel I am at max for summer temps. I try hard not to over load my rifle. My brass has 9 firings on it and each time it passes a thorough inspection.
I can not speak for what Kirby and Shawn have done. But I have talked pretty extensivly with the boys at Berger. They told me the "slump" was from very fast accelerating loads, like a 338 Lapua loading with a max load of fast burning ball powder for higher velocity. As far as I know, I have not heard of any problem with them from H-1000 or Retumbo. If someone has seen this I wish they would post so we could narrow down there limits. Every bullet has a limit.
I will not say that these bullets will work for the hotrods. But I use to have problems even with 220 swift and a 6mm/284 that would smoke a bullet when loaded up. So I don't see the problem. Bullets failing in wildcats has been a problem for years. I feel this bullet is a great match for many .338 chamberings. Not all, but many. I do not know of any bullet that works perfect in all chamberings of a given caliber.
A few of us have done some expansion tests with the 300gr Berger Hybrid. I got a 1 3/4" exit hole in cardboard after one passed through a 1/4" board, 2" of dirt/compost mix, then 1/2" of plywood and 14" more dirt/compost. This was at 1180 yards and a velocity of just under 1800 fps. Do I want a thicker case to hunt with?? Do you?? Just food for thought.
All I am saying is, it don't cost much to try them in your rifle. Nothing ventured , nothing gained. I like em and I hope they keep making them.