Home Forums Hunting & Shooting Express Rifles and Big Bores Only Question for the .400 Whelen Crowd

Sir Jerry,
OK, I am going to edit and add your 60, 63, 65, 67 charges to the 68.0-gr charge as max load.
Separate line for each powder charge is how they do it at ammoguide.com.
They are all going to be commented on as fire-forming loads with only the 68.0 grain charge shown as compressed.
After fire-forming, the loads will differ little in velocity or pressure and no question of utter reliability on headspacing.
I will note your comments on neck sizing to maintain full shoulder diameter.
And I will put a corrected to MV note in the comments but show the chrono velocity at 6 yards in the load table entry.

BTW, to correct a 6-yard velocity of 2267 to MV with a BC of 0.307 G1, add 16 fps >>> 2283 fps, 4629 ft-lbs KE.

Whelenhunter's load with the 400-gr Swift A-Frame in a different rifle, though also using CFE-223 is a different kettle of fish.
I did not know the bullet existed, wonder if it might be a re-sized .416", will have to look at his comments on the load.
My "Swift Reloading Manual Number Two" shows a 350-gr/0.410" A-Frame used in .405 WCF loads.
That would be a good bullet in the .400 Whelen.
Minus .001" is fine for jacketed bullets, might reduce pressure and velocity.
Matching bullet diameter to groove diameter is better: .411" in .400 Whelen-Petrov.
Shooting +.001" or .412" in a .411" groove with jacketed bullets gets pressures up.
Captain obvious told me so.