FYI ....
While the 7.82 Lazzeroni Warbird is considered proprietary and technically does not have a parent cartridge to neck down and up from ..... It does share the exact same case rim & web dimensions as the 338 Excalibur/300 Pegasus that it is based on, both of those cases can be used to make Warbird brass, you'll have to cut them down, neck down to create a headspace shoulder & fireform, then turn the necks.. fairly simple work for wildcatters ..... John Lazzeroni shortened it to appropriate length for the actions and box/magazines he was working with at the time without sacrificing any performance, The Warbird is a very well designed cartridge that is capable of extreme accuracy, even in the factory Sako TRG-S m995 hammer forged barrels, it consistently shot sub moa 1/2" to 1/4" groups with hunting bullets, 180 gr & 200 gr Accubonds & A-Frames in the 3 rifles I messed with all shot better than most of my custom built guns with target bullets at the time ...
Most of the negative bs around the 7.82 Warbird was fueled by jealousy and sissy Nancy's terrified of recoil and loud noises, both of which are common in large magnum cartridges ......, my bro & I hunted Alaska with factory Sako TRG-S m995 7.82 Lazzeroni Warbirds for 10-12 years, killed a bunch of moose, griz, deer, black bear, wolves, coyotes, cranes etc... no muzzle brakes and alway loaded it hot for maximum velocity that it works best at for extreme accuracy and single digit sd's, most well designed cases run best at peak performance levels... the only issue surrounding the Warbird was the brass..... to reach the famed 3500 fps with 180 gr bullets ... you sacrificed the brass to two firings ..... now back in 2003 a 20 pc box of new empty cases at $99.99 was considered a lot of cash, the original brass was made by MAST Tech and is no longer made, new stuff is supposedly made by Hornady for Lazzeroni, heard it was better but I have not had the chance to try it yet to make any comments
NOW we "Circle back" and all of a sudden it is in vogue to send 30 cal bullets screaming downrange at 3500 fps .......
Need I remind y'all that John Lazzeroni designed an awesome 6.5 cartridge that was totally blasted by everyone at the time but now is considered the Holy Grail of 6.5's since wHorenady hijacked it in the form of 6.5 PRC ?
How many of you will champion the next "new" 30 cal magnum copycat because wHorenady did it ?
nothing new under the sun indeed .....
one thing I want to point out is that you CANNOT use 33xc brass to "Neck it down and shorten it" to make Warbird brass ... completely different web & rim dimensions on the two, the 33xc is based on the 338 Lapua case stretched to CheyTac length with different top of body, neck length and shoulder dims and is NOT usable to form Warbird cases.....