Favorite uncommon calibers

Again it's amazing in just a few short posts how many cartridges you guys came up with I've never heard of. Would love to hear about the history of them.
Herrett rounds were the product of Bob Milek and Steve Heŕrett. Bob's son is on this forum. There is a lot of info on these if you Google them. My longest shot on a deer was 185 yards with the 30 Herrett. One shot and her knees buckled under her.
 
Herrett rounds were the product of Bob Mileck and Steve Heŕrett. Bob's son is on this forum. There is a lot of info on these if you Google them. My longest shot on a deer was 185 yards with the 30 Herrett. One shot and her knees buckled under her.
Will due. Thanks I look forward to reading about it. And 😲 lot of knowledge on this forum glad I became a member instead of a lurking.
 
Those are definitely some rounds I've never heard of could you please explain their history.
8x68s...https://en.wikipedia.org/wiki/8%C3%9768mm_S
9.3x64...https://en.wikipedia.org/wiki/9.3%C3%9764mm_Brenneke
6.5x57R...https://en.wikipedia.org/wiki/6.5%C3%9757mm_Mauser
The 9.3/375 Flanged is my wildcat necking down the .375 Flanged Magnum
The .375 Flanged Magnum (9.5×75mmR), also known as the .375 H&H Flanged Magnum is the companion cartridge to the .375 H&H Magnum for use in double rifles and was released together with the .375 H&H Magnum by Holland & Holland. It is a rimmed (flanged) cartridge and is loaded to a lower pressure level of 47,000 psi (320 MPa).

.375 Flanged Magnum Schematic

The CIP has published mandatory specifications for the .375 Flanged Magnum. Bore ∅ for the cartridge is 9.30 mm (0.366 in) and the groove ∅ is 9.55 mm (0.376 in). The barrel will have six grooves with a twist of one revolution in 305 mm (12.0 in) and each groove being 2.92 mm (0.115 in)wide. SAAMI has not published specifications nor recommendations in regard to this cartridge.

The cartridge is capable of firing a 235 gr (15.2 g) bullet at 2,800 ft/s (850 m/s), a 270 gr (17 g) bullet at 2,650 ft/s (810 m/s) and a 300 gr (19 g) bullet at 2,500 ft/s (760 m/s) with muzzle energies of 4,090 ft⋅lbf (5,550 J),4,200 ft⋅lbf (5,700 J) and 4,160 ft⋅lbf (5,640 J) respectively. The cartridge is appropriate for the same game species as the .375 H&H Magnum cartridge.
 
8x68s...https://en.wikipedia.org/wiki/8%C3%9768mm_S
9.3x64...https://en.wikipedia.org/wiki/9.3%C3%9764mm_Brenneke
6.5x57R...https://en.wikipedia.org/wiki/6.5%C3%9757mm_Mauser
The 9.3/375 Flanged is my wildcat necking down the .375 Flanged Magnum
The .375 Flanged Magnum (9.5×75mmR), also known as the .375 H&H Flanged Magnum is the companion cartridge to the .375 H&H Magnum for use in double rifles and was released together with the .375 H&H Magnum by Holland & Holland. It is a rimmed (flanged) cartridge and is loaded to a lower pressure level of 47,000 psi (320 MPa).

View attachment 573085
The CIP has published mandatory specifications for the .375 Flanged Magnum. Bore ∅ for the cartridge is 9.30 mm (0.366 in) and the groove ∅ is 9.55 mm (0.376 in). The barrel will have six grooves with a twist of one revolution in 305 mm (12.0 in) and each groove being 2.92 mm (0.115 in)wide. SAAMI has not published specifications nor recommendations in regard to this cartridge.

The cartridge is capable of firing a 235 gr (15.2 g) bullet at 2,800 ft/s (850 m/s), a 270 gr (17 g) bullet at 2,650 ft/s (810 m/s) and a 300 gr (19 g) bullet at 2,500 ft/s (760 m/s) with muzzle energies of 4,090 ft⋅lbf (5,550 J),4,200 ft⋅lbf (5,700 J) and 4,160 ft⋅lbf (5,640 J) respectively. The cartridge is appropriate for the same game species as the .375 H&H Magnum cartridge.
Yet again I never knew the 375 h&h was a rimmed cartridge. Please forgive me but I'm going to have to take the time to look at the information. Thank you though for posting I appreciate it.
 
8x68 S fired a 200 grain bullet at over 2900fps which was extremely potent for a cartridge designed during the 1930's. To house the 8x68 S and its sibling, the M98 action had to be milled forwards (front of magazine well towards bottom recoil lug rebate) and the magazine extended accordingly.
Well I'll be dipped they had a 8 rem mag before Remington had a 8 mm rem mag.
 
I used to shoot a lot of IHMSA silhouette. My favorite revolver cartridge was the .375 Super Mag. Then Dan Wesson came out with the .445 Super Mag. Traded the .375 for a .445 .

In an 80 round match the the recoil of the .445 would get to me. The last couple of banks of rams was a real struggle. 40 round match wasn't all that bad.
 
8x68 S fired a 200 grain bullet at over 2900fps which was extremely potent for a cartridge designed during the 1930's. To house the 8x68 S and its sibling, the M98 action had to be milled forwards (front of magazine well towards bottom recoil lug rebate) and the magazine extended accordingly.
Well I'll be dipped they had a 8 rem mag before Remington had a 8 mm rem mag.
That is straight up magnum stuff.
 

Recent Posts

Top