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Is there Ever to much neck clearance.

Well 5.56 is not SAAMI.

Talked to my brother, be certain to slug the bore. Old and military means some pretty broad tolerances. His bore was 286 and change, so he used 275 H&H bullets .287 for jacketed. If they are too big, you can run them through a sizing die and lose at .001” diameter easily.

Brass from 257 Roberts tended have thicker necks for donor cartridges than a lot of American 7x57 brass. Makes sense, Roberts used the 7x57 necked down. He said the necked up brass was .016”. Old military 30.06 cases were also thick.

It fun to get the old things off the wall and on the range, even more if they shoot well. I remember him not doing so well for bench rest and targets with it, but silhouette was another story.

Hope that helps to get you going.
that slugging and bullet sizing is interesting and I may learn a few things trying this. Sometimes in this gun bullets will fly around like twist is to slow. since i know its not mabie bullets not fitting the bore could be a reason. I have sized 7x57 brass from quite a few different calibers. never checked the necks that close. Ill try it again. Thanks
 
@hoz53,

Hopefully this is helpful to some degree for you to enjoy your 7X57mm rifle. You say you've ordered some brass but don't know when it might ship.

Graf & Sons have a good selection of 7mm bullets in "normal" times, and still have a decent in-stock selection currently including some from Prvi Partizan / PPU at bargain prices, $0.25 to $0.28 per bullet in several different bullet weights and styles.


Plus they have 7X57mm Prvi Partizan / PPU brass in stock, at $0.55 per cartridge case.


Prvi Partizan's factory is in Serbia in Eastern Europe, formerly part of Yugoslavia.

$9.95 flat rate shipping for most orders (HazMat and such items excluded, in the fine print).

They've been my preferred source for brass & bullets for my 7X57mm and 7X64mm rifles.
 
@hoz53,

Hopefully this is helpful to some degree for you to enjoy your 7X57mm rifle. You say you've ordered some brass but don't know when it might ship.

Graf & Sons have a good selection of 7mm bullets in "normal" times, and still have a decent in-stock selection currently including some from Prvi Partizan / PPU at bargain prices, $0.25 to $0.28 per bullet in several different bullet weights and styles.


Plus they have 7X57mm Prvi Partizan / PPU brass in stock, at $0.55 per cartridge case.


Prvi Partizan's factory is in Serbia in Eastern Europe, formerly part of Yugoslavia.

$9.95 flat rate shipping for most orders (HazMat and such items excluded, in the fine print).

They've been my preferred source for brass & bullets for my 7X57mm and 7X64mm rifles.
thanks Mr Zorg--- I did order PPU brass and i thought I ordered it from Graf but mabie I ordered it from Midway. When i ordered it, it was listed in stock, but i havent got it yet. I have some bullets but i do need to select a current made one for this gun. I may have to try those PPU bullets.
 
thanks josh--- cant remember what bullets i have, but i have some ill try. Ive only shot 140s in mine but i like the sound of 120s better. Ill try it.
I’m sitting on 4k Sierra 120s ..............if ya want some? ;)
 
thanks Mr Zorg--- I did order PPU brass and i thought I ordered it from Graf but mabie I ordered it from Midway. When i ordered it, it was listed in stock, but i havent got it yet. I have some bullets but i do need to select a current made one for this gun. I may have to try those PPU bullets.
My last order from Graf and Sons took three or so weeks to ship, then transit time, so there's a definite lag. But everything was correct and well packaged on arrival so no complaints from me anyway.
 
My last order from Graf and Sons took three or so weeks to ship, then transit time, so there's a definite lag. But everything was correct and well packaged on arrival so no complaints from me anyway.
yes everyone is having the lag time but main thing is you got the stuff thanks
 

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