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

Some reframing of above for emphasis:

Below is a 2.490" case length crimped into a 400-gr bullet ready to fire for first time.
The caliper is spread 2.501" wide.
The reamer chamber length MINIMUM is 2.501", but a few thou of slop in that direction would not be harmful.
One should never let his brass grow longer than 2.490" to avoid a pressure excursion.
Trim to minimum length of 2.480" to 2.485" for safety.
Also, gunner500 may get away with hunting with his fire-forming loads,
but his rifle and die combo may be special, you never know about those tolerances with slop or lack of slop.
Best to fire form your brass with a paper-punching and rabbit hunting bullet
then make serious hunting ammo out of the first reload of said brass.



What I have to say about photo below: Wow.
I will enter that load at www.ammoguide.com



The fire-formed case is a beautiful thing, ready for serious work.
What was that thing about form following function?
In this CASE, function follows FORM, pun intended.