Does anyone here shoot a Remington rolling block in 7x57? I am trying to find out the best bullet weight to load for my rifle. I was looking for lead cast bullets, but now am thinking 7mm bullets I use for my Mauser 7x57. Any ideas?
Rolling Block
- Thread starter Igiveup
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STORMINORMAN
Member
To my knowledge your 7x57(SM?) Rolling Block is a 7x57 Mauser and Mauser 7x57 ammo and 7mm and/or .284" bullets should suffice.
Mine has shot both the factory S&B 173gr SPCE and the 139g SP from PPU with no problems: that's where I get my brass to reload. I don't load them much higher than modern mid-range to begin with. Very accurate and soft shooting!
If you have concerns just have a gunsmith inspect your Rolling Block: excessive headspace and/or a worn out chamber or barrel can present an issue, but these rifles are pretty rugged in both construction and materials.
Cheers!
Mine has shot both the factory S&B 173gr SPCE and the 139g SP from PPU with no problems: that's where I get my brass to reload. I don't load them much higher than modern mid-range to begin with. Very accurate and soft shooting!
If you have concerns just have a gunsmith inspect your Rolling Block: excessive headspace and/or a worn out chamber or barrel can present an issue, but these rifles are pretty rugged in both construction and materials.
Cheers!
Ivan the Butcher
Member
175 gr RN, FMJ OR SOFT POINT. Hornady makes them.
Ivan
Ivan
Photog
Member
Not for many years. That was my favorite bullet to use and it is very hard to come by today.
Ivan the Butcher
Member
In my Rugar No 1 I like the 275 RIGBY load. The true load is too hot for Rolling Block rifles, but it uses a Jacked 154 Semi-Spitzer soft point.
I doubt they will shoot to the sights.
Ivan
I doubt they will shoot to the sights.
Ivan
OP
STORMINORMAN, does the heavier bullet work best for your rifle? I was told the 175 gr. was a good choice because it is close to the original military bullet.
STORMINORMAN
Member
Kevin: I have only shot a few rounds with the heavier bullets, mostly to confirm POA vs. POI. I do believe it is a good choice. Brass in both cases (PPU & S&B) resized easily.
Cheers!
Cheers!
deadin
US Veteran
I have not reloaded for rifle in years, but I seem to remember that flat base vs. boattail can make quite a difference in some calibers as to accuracy.
Keep breech pressures 40K and under for the Rem RB in 7x57.
Figure loads rated for the pre-98 Mauser rifles in 7x57 are OK.
I used to use Starting Loads published and left it at that.
Seems to me that Remington made the bbls to a slightly larger bore&groove spec than what is used today for a 7mm as well.
Remembering that at the same approx time, the 280Ross (1906) and the 28-30-120 Stevens (1900) ,,both 7mm cartridges used bullet dia's in the .287" size.
The Rem RB 7x57 chamber is cut with a longer HeadSpace spec than later commercial and Military rifle chambers.
It was just something done at the time. There was no SAAMI.
The Rem RB 7x57mm chamber has a HS spec that is anywhere from .006 to .013" larger/longer than the standard spec of todays 7x57 ammo/chamber.
That Rem RB HS spec is that much longer than the Mauser and commercial rifles of the same time as well. (NOT the OAL of the cartridge case)
That they vary within themselves that much plus the chambers can be oversize in diameter can cause reloading problems when resizing.
Another HS problem arises with a loose BreechBlock.
With the BreechBlock closed and the Hammer down all the way,,the BreechBlock on many rifles can be rotated back quite a distance.
Too far to be considered safe.
Again more excess HS and the creation of an out of square breech face.
The latter can sometimes leave you with cases that won't rechamber unless indexed back to the same loc as orig fired.
Loose/poor fitting hammer and BrBlock axel pins can add to the HS as the parts move back when a cartridge is fired.
These have to be replaced or refitted when tightening up one of these.
A RB in 7mm Mauser should have about .003/.004 max HS when measured with a feeler gauge betw a cartridge in the chamber and the face of the closed breech.
The Hammer is down so the Breech Block is locked and can only rotate back against the feeler gauge intrusion the total amt of it's thickness.
They are a strong action but do have their limits and some short comings.
Fun to work with and work on.
Good shooters generally.
Figure loads rated for the pre-98 Mauser rifles in 7x57 are OK.
I used to use Starting Loads published and left it at that.
Seems to me that Remington made the bbls to a slightly larger bore&groove spec than what is used today for a 7mm as well.
Remembering that at the same approx time, the 280Ross (1906) and the 28-30-120 Stevens (1900) ,,both 7mm cartridges used bullet dia's in the .287" size.
The Rem RB 7x57 chamber is cut with a longer HeadSpace spec than later commercial and Military rifle chambers.
It was just something done at the time. There was no SAAMI.
The Rem RB 7x57mm chamber has a HS spec that is anywhere from .006 to .013" larger/longer than the standard spec of todays 7x57 ammo/chamber.
That Rem RB HS spec is that much longer than the Mauser and commercial rifles of the same time as well. (NOT the OAL of the cartridge case)
That they vary within themselves that much plus the chambers can be oversize in diameter can cause reloading problems when resizing.
Another HS problem arises with a loose BreechBlock.
With the BreechBlock closed and the Hammer down all the way,,the BreechBlock on many rifles can be rotated back quite a distance.
Too far to be considered safe.
Again more excess HS and the creation of an out of square breech face.
The latter can sometimes leave you with cases that won't rechamber unless indexed back to the same loc as orig fired.
Loose/poor fitting hammer and BrBlock axel pins can add to the HS as the parts move back when a cartridge is fired.
These have to be replaced or refitted when tightening up one of these.
A RB in 7mm Mauser should have about .003/.004 max HS when measured with a feeler gauge betw a cartridge in the chamber and the face of the closed breech.
The Hammer is down so the Breech Block is locked and can only rotate back against the feeler gauge intrusion the total amt of it's thickness.
They are a strong action but do have their limits and some short comings.
Fun to work with and work on.
Good shooters generally.
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