andrewctillman":pv2z2f85 said:I am old enough to have loaded the 30-06 with a 165 grain Partition with H-205 and got 2975 fps from a 22 inch barrel way back in late 70's or early 1980's. H-205 and Norma 205 were both discontinued about the same time due to pressure unpredictablity as I recall. I loaded that ammo for a couple of logger friends in Wallowa county and it killed elk very well.
Thirty years later I used RL25 in my 26 inch stainless pre64 and got over 3050 fps with the 160 AccuBond and North Fork.
Shooting Accubonds in both and using Byran Litz verified G7 BC, in a full deflection 10 mph cross wind the hot 30-06 has 2 inches more wind drift at 400 yards and only 150 fps less velocity. Not much difference especially when one is a 22 inch barrel, weighs less and kicks less.
I think the 7mm got its reputation from the fact it is going fast enough at close range, say out to 150 yards, that it frequently caused sudden death by completely destroying the heart. I have seen 30-06 failures with good bullets on big elk, including the 180 PT at a normal 2700 fps, where they run like they do forever despite a pencil sized hole through one or both lungs. (Happened to my father in law most recently).
That extra velocity and bullet and bone fragmentation of the 7mm is beneficial, but that 165 PT at 2975 had similar effect at close range for my logger friends though it does not do so well at 400 yards as the AB.
What the 30-06 gives up in velocity is somewhat made up for by its larger expanded frontal area.
By the way, great picture of the 160 gr Bitterroot. That is what a hunting bullet is supposed to look like! What was velocity and range?
Andy I am old enough for the H205/N205 business as well; and have seen those velocities from a couple of 22" pre 64 M70 FW barrels that were measured and found to be oversized. I had a lot of discussions with Bill Steigers about that very subject.
Yes if a 30/06 gets to those velocities it narrows the gap between the cartridges,and I have seen a couple of bulls poleaxed with the 165 NPT at 400-500 yards and we are hard pressed to tell the difference. But IME it is easier to get 3050 with a 160 in the 7 RM than with the 165 in the 30/06. Anyway the 7 RM consistently shows less drop at anything from 300 on out,at least with my rifles. Most ammo with that 165 will not hit 2900 fps, factory or handholds unless the hand loader makes it happen.... :grin:
The 160 BBC was fired from a 7 RM at 3080,into the neck of a 6x6 bull from behind and above.Distance was about 200 yards.It went over the shoulder hump, into the neck and was recovered under the chin.It destroyed a substantial amount of the spine ,and caused a lot of trauma to surrounding neck tissue. retained weight was about 159 gr IIRC and expanded frontal area was almost 70 caliber.
The BBC is equaled by some designs today but not many are truly better IMHO.