THE ACCURATERELOADING.COM FORUMS


Moderators: Mark
Go
New
Find
Notify
Tools
Reply
  
7mm x 66 Super Express (Vom Hofe) loading data?
 Login/Join
 
one of us
Picture of Kyler Hamann
posted
I'm working up loads for a 7mm x 66 Super Express (Vom Hofe) that my brother-in-law just got from his father. The little research I've done shows that this is a pretty rare cartridge so I've found very little loading data. It's a Mauser model 66 and thank goodness it came with dies and a bunch of new brass.

Other than the couple suggested loads shown in "Cartridges of the World", does anyone have loading data for this cartridge? I don't have any of the European powders so I'd really appreciate data for powders such as IMR-7828, IMR-4831, IMR-4350, H1000 or H4831. Any data for Barnes bullets would also be extremely helpful.

Thanks,
Kyler


___________________________
www.boaring.com
_____
 
Posts: 2515 | Location: Central Coast of CA | Registered: 10 January 2002Reply With Quote
One of Us
Picture of Mike_Dettorre
posted Hide Post
loaddata.com shows 2 loads with IMR4350. unfortunately, to get the load data you have to be a paid member but at least its a powder to start with.

Stated velocity is 3350 fps for a 130grn and 2900 fps for 175 grn


Mike

Legistine actu quod scripsi?

Never under estimate the internet community's ability to reply to your post with their personal rant about their tangentially related, single occurrence issue.




What I have learned on AR, since 2001:
1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken.
2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps.
3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges.
4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down.
5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine.
6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle.
7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions.
8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA.
9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not.
10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact.
11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores.
12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence.
13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances.
 
Posts: 10164 | Location: Loving retirement in Boise, ID | Registered: 16 December 2003Reply With Quote
one of us
Picture of MuskegMan
posted Hide Post
It's about 10% larger (volume-wise) than the 7 RM and 7 Bee. Pretty much matches the 7 Dakota in volume.


 
Posts: 2097 | Location: S.E. Alaska | Registered: 18 December 2003Reply With Quote
one of us
posted Hide Post


Brass Horneber
Rifle M66 Gehmann Mauser Rifle
 
Posts: 7857 | Registered: 16 August 2000Reply With Quote
One of Us
posted Hide Post
 
Posts: 230 | Location: Germany | Registered: 02 December 2009Reply With Quote
  Powered by Social Strata  
 


Copyright December 1997-2023 Accuratereloading.com


Visit our on-line store for AR Memorabilia