Rolling Block question

Huffmanite · April 2, 2015, 03:10 PM

Own a #5 rolling block Remington in 7x57.....1902 probably. Bore in it is decent, but problem in chamber in shoulder/neck.

Have toyed with idea of just rebarreling it, perhaps to another 7x57, or maybe a 250 Savage.

Just curious if its possible to just set the barrel back and run a 7x57 reamer down it to rid the bad spot in chamber?

mapsjanhere · April 2, 2015, 04:45 PM

The other option would be to ream for a longer 7mm like the 280 Rem or 7x64 if the system can take the pressure.

Jim Watson · April 2, 2015, 06:10 PM

Sounds like an interesting DIY if you are tooled up for it.
I don't know about paying a gunsmith for the work. Depends on your idea of a "decent" bore, I guess.

If a .280 reamer would clean up the shoulder, I would stick to starting loads.

Scorch · April 2, 2015, 08:09 PM

Remington #5 rolling blocks are not really strong enough to take more than the 7X57, so no 280 or 7X64 or 280 Ross, etc. They shoot loose pretty quickly if you do. You could always get a little weird and go with a 444 , 9X57R, 30-40 Krag, 405 Winchester, or any other rimmed cartridge you can think of.

Huffmanite · April 3, 2015, 02:03 PM

yes, a 7x57 pressure like cartridge is about all you want in a #5 Remington Rolling Block action.

As to making it a 30-40 Krag, which by the way I wouldn't mind having, or another low pressure rimmed cartridge. The 7x57 in my rolling block is a rimless one, not a rimmed one.....will not entertain idea of messing with extractor in my RB.

Doc Hoy · April 3, 2015, 03:44 PM

.....About relining my .43 Spanish RRB.

He wanted 250.00.

Guy near Gettysburg, PA.

chiefr · April 25, 2015, 09:12 AM

Need to know more about your chamber problem.

James K · April 25, 2015, 04:11 PM

Since there is no magazine, gas system, or any other need to keep the barrel at some specific length, setting it back one turn and rechambering should work just fine and can be done by any competent gunsmith.

Jim

barnbwt · April 26, 2015, 02:31 PM

I've got the same rifle with the same issue, and I actually considered a rechamber/rebore to 7.62x55. The Swiss round is fairly low pressure for what it is, and the existing overbored chamber is within its dimensions. Less of an issue with too-high pressures in available factory ammo, too. 7mm is getting kinda hard to find as well, sadly.

TCB

James K · April 26, 2015, 07:51 PM

7x57 is still available and cases are easily made from 8x57 or .30-'06, both of which are common.

Jim

Magnum Wheel Man · April 28, 2015, 07:12 AM

I bought a shooting supply of PRVI ammo for the reloadable brass for my 7 X 57... reasonably priced ammo, & great brass to reload

BTW... I also agree you are likely best off setting the barrel back & touching up the chamber...

April 2, 2015, 03:10 PM	#1
Huffmanite Senior Member Join Date: February 17, 2006 Location: Northeast of Houston, Tx Posts: 393	Rolling Block question Own a #5 rolling block Remington in 7x57.....1902 probably. Bore in it is decent, but problem in chamber in shoulder/neck. Have toyed with idea of just rebarreling it, perhaps to another 7x57, or maybe a 250 Savage. Just curious if its possible to just set the barrel back and run a 7x57 reamer down it to rid the bad spot in chamber?

April 2, 2015, 04:45 PM	#2
mapsjanhere Senior Member Join Date: August 6, 2009 Location: Albuquerque Posts: 2,832	The other option would be to ream for a longer 7mm like the 280 Rem or 7x64 if the system can take the pressure. __________________ I used to love being able to hit hard at 1000 yards. As I get older I find hitting a mini ram at 200 yards with the 22 oddly more satisfying.

April 2, 2015, 08:09 PM	#4
Scorch Senior Member Join Date: February 13, 2006 Location: Washington state Posts: 15,248	Remington #5 rolling blocks are not really strong enough to take more than the 7X57, so no 280 or 7X64 or 280 Ross, etc. They shoot loose pretty quickly if you do. You could always get a little weird and go with a 444 , 9X57R, 30-40 Krag, 405 Winchester, or any other rimmed cartridge you can think of. __________________ Never try to educate someone who resists knowledge at all costs. But what do I know? Summit Arms Services

April 3, 2015, 03:44 PM	#6
Doc Hoy Senior Member Join Date: October 24, 2008 Location: Naples, Fl Posts: 5,440	Talked to a guy a while ago ..... .....About relining my .43 Spanish RRB. He wanted 250.00. Guy near Gettysburg, PA. __________________ Seek truth. Relax. Take a breath.

April 26, 2015, 02:31 PM	#9
barnbwt Senior Member Join Date: May 17, 2012 Posts: 1,085	I've got the same rifle with the same issue, and I actually considered a rechamber/rebore to 7.62x55. The Swiss round is fairly low pressure for what it is, and the existing overbored chamber is within its dimensions. Less of an issue with too-high pressures in available factory ammo, too. 7mm is getting kinda hard to find as well, sadly. TCB __________________ "I don't believe that the men of the distant past were any wiser than we are today. But it does seem that their science and technology were able to accomplish much grander things." -- Alex Rosewater

April 2, 2015, 06:10 PM	#3
Jim Watson Senior Member Join Date: October 25, 2001 Location: Alabama Posts: 18,543	Sounds like an interesting DIY if you are tooled up for it. I don't know about paying a gunsmith for the work. Depends on your idea of a "decent" bore, I guess. If a .280 reamer would clean up the shoulder, I would stick to starting loads.

April 3, 2015, 02:03 PM	#5
Huffmanite Senior Member Join Date: February 17, 2006 Location: Northeast of Houston, Tx Posts: 393	yes, a 7x57 pressure like cartridge is about all you want in a #5 Remington Rolling Block action. As to making it a 30-40 Krag, which by the way I wouldn't mind having, or another low pressure rimmed cartridge. The 7x57 in my rolling block is a rimless one, not a rimmed one.....will not entertain idea of messing with extractor in my RB.

April 25, 2015, 09:12 AM	#7
chiefr Senior Member Join Date: January 27, 2010 Location: AR Posts: 1,401	Need to know more about your chamber problem.

April 25, 2015, 04:11 PM	#8
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	Since there is no magazine, gas system, or any other need to keep the barrel at some specific length, setting it back one turn and rechambering should work just fine and can be done by any competent gunsmith. Jim

April 26, 2015, 07:51 PM	#10
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	7x57 is still available and cases are easily made from 8x57 or .30-'06, both of which are common. Jim

April 28, 2015, 07:12 AM	#11
Magnum Wheel Man Senior Member Join Date: July 26, 2006 Location: Southern Minnesota Posts: 9,333	I bought a shooting supply of PRVI ammo for the reloadable brass for my 7 X 57... reasonably priced ammo, & great brass to reload BTW... I also agree you are likely best off setting the barrel back & touching up the chamber... __________________ In life you either make dust or eat dust...