just goin along with my gear down & looks like I hooked onto something real big - is a 300 LRH a .338 Norma necked down to .308?so you tout the longer length of the 300 Win Mag will provide for substantial increase in velocity ? really ? show me some chronographed numbers along with what capacity gains you get ..... maybe 2 grains if that .... not much to see here just a bunch of bs from a troll, bent on seeing how many guys he can rile up,
also find me factory ammo loaded that way in 300 Win Mag & find me factory chambered rifles that way in 300 Win Mag ...
you're comparing an improved wildcat 300 Win Mag chamber to a factory standard 300 Wby ... with same components, well cowgirl.... two different cartridges that will load up differently .... build a custom rifle & handload the 300 Wby properly , it will obliterate factory 300 Win Mag ammo..... you're doing same , in reverse
well, I can do the same ......
my 300 LRH brass is shorter than the 300 Win Mag ..... Lapua, Petersen, ADG, Norma, Hornady and Bertram make brass for the 300 Norma ... along with RCC who make my 7mm LRH brass for an easy one pass neck up .....
for a much shorter case than your "long loaded" 300 Win Mag, my 300 LRH runs at 3225-3250 fps comfortably with 225 -230 gr bullets AND can be throttled back to match the 300 Wby, PRC, Win Mag etc, etc..... if the need arises, and has, for water jug impact, bullet penetration/deformation tests ......
meanwhile you're stuck with sub 300 Wby velocities in a custom chambered one off rifle and can't even match the factory 300 Wby
sounds like a fella can just get a 300 Wby and be miles (per second, ha !) ahead of your custom jobbie that doesn't impress
I like the 300 Win Mag and killed a bunch of moose, black bear, deer, wolves and a couple brown bears in Alaska, I also have the 300 Wby and the 30-378 Wby, along with a 340 Wby, which I prefer over the other 3 .....
most of my family & friends hunt with 300 Win Mags, have loaded hundreds of rounds of specially tailored hunting ammo for them over the years, including those who use the 300 Wby, 30-378 Wby, 300 RUM and now the 300 Norma & my improved version
not one person here has ever said the 300 Win Mag is indequate or lacking something ...... case capacity rules the velocity roost and it is clearly evident between the two, everything else you bring up is simply an old woman squawking about fluff that doesn't matter and equates in value to one dry mouse dropping ... if that
I still have my original pre-64 in 300 Win Mag along with a couple Rem 700's, got a bunch of Lapua & Peterson brass for it, probably have over 2k mixed mostly Rem, Win and assorted brass, have a bunch of factory Barnes Vortex ammo in 165 gr & 180 gr TTSX
def not dissing the 300 Win Mag that has served me very well, and many hundreds of Alaskan hunters
you're just rambling nonsense
Also, Swamplord with the quote of the month. Thanks for the laughs and attempting to maintain a level of sanity on this post!A. from the muzzle
Still makes me laugh! Comparing a wildcat to a factory round!Thanks all for going thru this stuff. My purpose was to present the somewhat handicapped .300 WM in a better light in comparison with the .300 WBY by showing a extension of COAL would help things out for the .300WM.
"The primary effect of loading a cartridge long is that it leaves more internal volume inside the cartridge. This extra internal volume has a well-known effect; for a given powder charge, there will be less pressure and less velocity produced because of the extra empty space. Another way to look at this is you have to use more powder to achieve the same pressure and velocity when the bullet is seated out long. In fact, the extra powder you can add to a cartridge with the bullet seated long will allow you to achieve greater velocity at the same pressure than a cartridge with a bullet seated short."
This is from:
COAL.pdf (bergerbullets.com) not me
Some nice photos:
View attachment 312857
View attachment 312859
The H1000 charge difference is 5.5 grains more for the 3.6" .300WM (76.5) than the shorty, capacity challenged 3.34WM (71.0).
My calculations came in just under 6 grains using VMD data for Retumbo. Retumbo VMD = .0720, H1000 VMD = .0713, H1000 is somewhat lighter per equal volume & that might account for some of the nearly .5 grain difference (needs more work, like more accurate measurements). In the works is a spread sheet to estimate case volume reduction using bullet displacement. Measuring the minor & major diameters of the boat tail (truncated cone) is not very exact due the radius on the bottom of the boat tail.
Just ask your friendly gun smith to ream the chamber with a longer throat. No other changes - provide a dummy round with the bullet of your choice. Also in the works is a Rem 700, having a 28 ", 10 twist, light Palma barrel, single shot - no magazine COAL restrictions, receiver face squared & lugs lapped in. .
Today at the range I got around 2885 - 2914 fps, using 74 gr. IMR 7977 with the old 208 Hornady AMax bullet from the nearly 50 YO, 3.60, .300 WM.
Another fyne cartridge, somewhat handicapped but having extensive accessibility, thus excluded from most complaint avenues, is the 2-fo-3 (.243 W). SAAMI standards specify a COAL of 2.710, my .243W is loaded with a COAL of 2.810. It does nicely with the Barnes 95 LR bullet for shooting deers.
This thread has been lots of fun!