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

The problem ain't fixed, till you get a stonger mag spring..

Back in 2004, my issued m249 machine gun wouldn't work with my back-up 30 round mag. It would only work with the belt-fed stuff. Gutted my back-up mag, doubled the springs and it worked flawlessly.

More recently, my witness compact 10mm jammed, even after wolf springs. Doubled mag spring from my second mag Problem fixed.

416 Rigby kimber: would spit rounds when u opened bolt. Stronger mag spring, problem fixed.

Too fkn easy dude......

Just found something that may be of interest...I like the idea of a crimp on the .400. My seating die won't roll crimp the short .35 Whelen brass and the Hawk bullets don't have a cannelure. I ordered a .405 Win Lee Factory Crimp die which did not work when putting the cartridge in the shellholder on the press. The shellholder contacts the press too soon and I would be crimping the bullet itself right in front of the case mouth (you can see in the pic below where I did just that with one of my dummy rounds).

Simple solution is to swap the shellholder for a quarter. Doing that I was just barely able to put a factory crimp on my short .35 Whelen Brass and the 350 Hawk. The QC brass is plenty long to crimp nicely with enough length to adjust the die for the desired level of crimp.

Great tip. Coin raises the slightly shorter case.
.400 Whelen 2.49" brass versus 2.58" .405 WCF brass.
Good that the .405 WCF LEE FC die does not touch and size down the shoulder of the fairly long-necked .400 Whelen.

If a case was slightly too long for a make-do Lee FC die, the shell holder could be left in place
and a washer-like hunk of steel fitted around the case to make contact for crimp in right place,
as long as there wasn't a shoulder issue.

I am going to see if I can order a .405 WCF LEE FC die right now if I can find one.