Has anyone ever tried to neck up a .300H&H to 9.3mm..and still leave the slick shoulderradius??..I thought it could be a nice cartridge pushing a 320grain bullet with a moderat 2250-2300 Ft/sec..Yes I know..there are many good 9.3`s out there..so much for the better with another one

jens...i like it but you mean 366 holland and holland

just turn the 0's into 6's to read 366 h+h easy headstamped brass! slick feeding!

although the 358 version jets ME more exited

p.m. .366 torque on that one...

although he and i agree belts and shoulders dont mix

You are a winner Boomy

..ofcouse..366 Holland & Holland No1 (haha)

I have already big plans for a customrifle in this caliber

this might be popular with the other 9,3 cool aid'ers...you might not have the only one...

with that headstamp you can go to africa! if you lose yer ammo just buy 300 h+h and 9,3 ammo and swap bullets

detail that rifle project in the big bore board (yes...9,3 is reeeeeeeeeely not a big bore but it does qualify as a d.g. cal in some african countries)

turn all 300's into 366's

366 savage
366 wsm
366 win mag
366 rum
366 lapua
366 weatherby
366 saum
366 dakota (favorite)

and turn all 308's into 368

368 win

ect...

Now this is amazeing ... Kabluey was over this evening, play,,wrong word Examining my cz medium 550 in 9.3 mauser... It has a longer magezine box than the standard length.... Specifically he was checking the potential feeding of his beloved 300 H&H. Factory loaded winchester brand ammo fit and fed just great.. no joke.......It wouldn,t take much reamer work and just a clean up on the bolt face.... ... With a 286 gr orynx At 2600 fps ..............yes sirrreeee bob.........This has potential even tho I love belts with of without shoulders....Gumboot over...