the 375 Mercenary is not anywhere close to 505 Gibbs or CT case diameter as they are .635" diameter at the web and the 585 Nyati and 375 Mercenary are .660" at the web, two very different cases, the bigger body is why we were able to get similar capacity of the Warlord, Lethal and HE in a case .220" shorter, now when I use the same case length of the others at 3.32" long the 375 Merc ll has an h20 capacity of 207.0 gr ... all I do is run my 375 Merc reamer in .220" for a deeper chamber and the capacity gain is gargantuan vs the other skinnier cases, imagine the 375 Merc case at 3.5" long ? or longer ? design was specifically engineered to be able to use the 375 Mercenary reamer in several case lengths to avoid having to wait for new reamers, the web area was purposely kept tighter in the original version to allow for running reamer in and longer versions will still have proper web diameter to prevent over expansion at the web and keep primer pockets tight ....... all the guys that bought the 375 Merc reamer basically got the 375 Merc ll for free !! the .010" taper per inch of case was added to the Merc simply because we needed it for the longer version to offer unrestricted extraction with 70 k psi loads, once longer cases arrive we will rechamber existing 375 Merc test barrel and continue with data accumulation .....
it will be the 375 H&H vs 375 RUM difference ...... for comparison ..........
the only similarity to the CT/Gibbs is the rebated rim of the same diameter so it will work on the CT boltface, same as the Warlord, Lethal Mag and HE
a 3.32" long 416 Merc would blow the 416 Barrett out of the water but we have a different, bigger case for bigger diameter bullets .........
our secret monster 375 Centurion project has spawned the 420 Enforcer last year and the larger cased 420 Blitzkreig......
after a year + in the making and waiting..... 11 tw 8 groove 38" barrels are on the horizon and will handle our prototype 1.0 bc 505 gr bullet and will also handle the newer 550 gr bullet, have also confirmed with CEB that they can make us 600 + gr MTH/MTAC bullets for the large capacity case ....
The 375 caliber is the NOW as we know it !
but we expected that and have been on the move to bigger and faster for some time .........
After much crunching and brainstorming we have come to the conclusion that the .404 caliber/.423" diameter bullets warrant thorough testing as that caliber offers the best of everything ...... .423" cal lands squarely in the center between the 416 and 510 cal .... same powders can be utilized without needing the BMG primers, No need for expensive, heavy BMG actions ..... we have a beefy .800" bolt, (Rem 700 clone) with 3 lugs, 5.0" port action in the works...... with a tennon to match the 2.5" barrel shank and the large diameter case ..... a faster barrel twist and length was unavailable but we have now overcome that, prototype bullets are on hand with several heavier weights coming , this will be an exciting summer for sure .....
even the God of war, Tyr himself would be pleased, as would Mars and Ares .....
in pic below is the 1.0 bc, 505 gr .423 caliber bullet next to the 338 Lapua Mag