7x57r
- Thread starter mike shickele
- Start date
mike shickele
Regular
Thank you, I thought that they where, But I wasn't sure. I have a buddy that has a 7X57R he wishes to continue shooting, and it gives me a chance to play with a new rifle, so the dies would be dedicated to that particular firearm. I'm hoping t5hat if I keep the pressures really low that the 40 cases that he has will last a long time; your probably right though, that I will probably have to almost completely full-length resize the cases each time.
Mike
Mike
carl gustav
CGN Regular
- Location
- Thunder Bay
Full length resizing will wear the cases out quicker.
- Location
- Somewhere on the Hudson Bay Coast
But failure to full length resize when the round is being chambered in a hinge action gun, the most common these days for a 7X57R, might result in chambering issues. I'd full length resize, the primer pockets will enlarge before the case fails if you set back the shoulder just enough to allow trouble free chambering.
As Boomer said, there is nothing worse in a double or any hinge rifle then when you cant quite close the action as the round is a few thou proud of the face and it will not close.
Dont take that chance - size the brass. It is relatively cheap and I havent worn out one yet.
Another tip - if you can crimp the round - do it. Try and prevent the bullet creep (or complete bullet removal with one shot of the opposite bbl in the case of a double) out of the brass, which dumps powder all through your action - then you cant close or open it -- eech!
I found that with a 222 type of bullet - if I dont crimp- I may loose 40% of the bullets when I shoot the 20 ga (combo gun) first. The larger bullets appear to grip better and may not need a crimp - but it is good practice with single, double or combo guns.
Dont take that chance - size the brass. It is relatively cheap and I havent worn out one yet.
Another tip - if you can crimp the round - do it. Try and prevent the bullet creep (or complete bullet removal with one shot of the opposite bbl in the case of a double) out of the brass, which dumps powder all through your action - then you cant close or open it -- eech!
I found that with a 222 type of bullet - if I dont crimp- I may loose 40% of the bullets when I shoot the 20 ga (combo gun) first. The larger bullets appear to grip better and may not need a crimp - but it is good practice with single, double or combo guns.
I would have the rifle right with me when I loaded the first ones for it. He has not stated what type of action it is, but probably some type of hinged. I used to hunt with an older, former European, who used a 7mm R, under a double 16 gauge.
I would set the sizing die to just "kiss," the shoulder of a case fired in that rifle, then make sure it chambered with no trouble.
Pushing the shoulder back a fair bit, every time, will greatly shorten the life of the brass.
But, loading light will not increase the length of the brass life, over normal, full loads. The only type of loading that decreases brass life, are loads so heavy that a very few loads will expand the primer pockets.
And, I am sure, that is not the type of load you want in any hinge break rifle!
The loading books, at least the US ones, do not give heavy loads for the 7mm, because of all the old guns out there, someplace.
I would set the sizing die to just "kiss," the shoulder of a case fired in that rifle, then make sure it chambered with no trouble.
Pushing the shoulder back a fair bit, every time, will greatly shorten the life of the brass.
But, loading light will not increase the length of the brass life, over normal, full loads. The only type of loading that decreases brass life, are loads so heavy that a very few loads will expand the primer pockets.
And, I am sure, that is not the type of load you want in any hinge break rifle!
The loading books, at least the US ones, do not give heavy loads for the 7mm, because of all the old guns out there, someplace.
Johnn Peterson
CGN Ultra frequent flyer
- Location
- Chemainus B.C.
I have a Brno ZH-304, 7x57R/12ga plus a set of 12ga double set of barrels. All I've ever used is a standard set of 7x57 dies for reloading and full length resizing I've never had any issues or problems closing the action. And I don't crimp.
mbogo3 you're quite correct. 303Br. brass can be used. As I recall, I think it ends up a little shorter but that isn't an issue either. 303Br. is what I used for quite some time before I lucked into a quantity of 7x57R brass.
mbogo3 you're quite correct. 303Br. brass can be used. As I recall, I think it ends up a little shorter but that isn't an issue either. 303Br. is what I used for quite some time before I lucked into a quantity of 7x57R brass.
