7x57 Rimmed?

[.45colt]

A Friend called and asked if I knew anything about this cartridge (7x57r). He has a chance to pickup a Merkel Drilling 16ga over the rifle barrel. Anyone have any experience with this one. Thanks. Jim.

[Merle]

A Friend called and asked if I knew anything about this cartridge (7x57r). He has a chance to pickup a Merkel Drilling 16ga over the rifle barrel. Anyone have any experience with this one. Thanks. Jim.

IIRC, it is the same case as a 7x57, but with a rim added to work in single shots & drillings. I believe it operates a somewhat lower pressure. Handloading would probably be your best option, as ammo is pretty scarce.

[Pisgah]

A Friend called and asked if I knew anything about this cartridge (7x57r). He has a chance to pickup a Merkel Drilling 16ga over the rifle barrel. Anyone have any experience with this one. Thanks. Jim.

IIRC, it is the same case as a 7x57, but with a rim added to work in single shots & drillings. I believe it operates a somewhat lower pressure. Handloading would probably be your best option, as ammo is pretty scarce.

I've noted a couple of sources of the brass, but the price surely reflects the scarcity in this market -- right around $1.25 per case. Of course, keep loads where they ought to be and neck-size only and 100 cases should last a loonngg time.

[Pete44ru]

.

Once upon a time, I had an older, pre-war Saur & Sohn 16x16x7x57R drilling, and I could only find the rifle ammo @ gunshows ($$$), and even then, really old ammo (S&B/Sellier & Benoit).

If the drilling your friend is considering is set up for claw-type scope mounts, I would caution him to VERY carefully check the top rib with a magnifying glass for a minute (or worse) separation from the shot barrels - a common fault, and a very expensive repair, often costing more than the gun is worth.


.

[cas]

7? No.


Got's me one a these.

[Merle]

http://www.luckygunner.com/rifle/7x57mm-rimmmed-ammo

try here

[.45colt]

Thanks Guys, I did some looking around today& found loaded ammo and some new Norma brass. called several places to see if 7x57 dies would work with a different shell holder for the rim. most reply's were "duh"....I dunno. . I'll keep digging and see what pans out. .

[KWK]

... to see if 7x57 dies would work with a different shell holder...

I believe so. You can inspect the standards published by the CIP (Europe's counterpart to SAAMI) and will find the differences are very minor.

The peak operating pressure for the rimmed is about 15% lower; however, it's nearly the same as the SAAMI data you'll find in US load books for the 7 Mauser. The CIP rates the rimless higher than SAAMI.

Karl

[6pt-sika]

7? No.


Got's me one a these.

I've got a pair of 7x57R drillings , ones a 50's-60's JP Sauer under 12 gauge barrels and the others a Kerner under 16 gauge barrels . But what I'd REALLY like is a nice hammerless 16 gauge with claw mounts and a scope over 6.5x57R !

[6pt-sika]

I load the 7x57R using normal RCBS 7x57 dies .

[.45colt]

Thanks once again Guys.

[cas]

This made me laugh when I thought about it. "Which dies do I use?" "Mmmm... the ones that came with the gun!" I don't know what they are.

[mellonhead]

You should be able to use 444 Marlin brass if you need brass. I used used it in a custom Encore barrel in 7x57 that I counter bored to use the 444 brass. Worked great. I ran it through a 8x57 sizer die first.

[windy]

I bought some Norma brass for mine, and resized some 6.5x57R brass (full length, not just expanding, as the shoulder is different) and the resized RWS 6.5 works better in my 7x57R/12ga combo than the Norma 7. I don't think I'm getting quite the full case resized using my regular 7x57 dies with a 303 Brit shellholder but that might be a problem with my press. I'm loading just under max out of the old Lyman book using IMR 4064 and getting no excess pressure signs shooting 120 Noslers and 130 Speers; the 140 Noslers don't shoot to the sights by a bit. Don't need big bullets to kill the local deer or coyotes, and I'm happier packing out a brace of grouse than a deer anyway, so I'm set to go for next Fall. I tend to load with H4350 for my regular 7x57's, but I bought a big keg of 4064 when powder was scarce and it seems to work good in the Brno, so I'll stay with it--and the 12ga barrel is so tight, I may need to shoot spreader loads or the low noise/low recoil 12's to salvage any meat from bird or bunny. Maybe one of my trapshooting buddies can load me some 7/8 oz. low-base 6's.
mind yer topknots!
windy