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Re: Why so little talk about 257 Robert's loads ? [Re: splattermatic] #14572182 02/14/20
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It's a dying chambering, indeed. But, if you have one, it's always going to be roughly the equivalent of the 6.5CM/.260Rem with medium-weight big game bullets. A deer or hog at typical hunting ranges is not going to recognize any difference between a 120gr load at 2,850fps from a Roberts and a 120-130gr load at a similar speed from a Creedmoor. Put the same quality bullet in both, and they are indistinguishable.

I think the Roberts "belongs" in a pretty walnut rifle like the Kimber Select, and not much will shrug off a 120gr Partition in the chest.


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Re: Why so little talk about 257 Robert's loads ? [Re: Mule Deer] #14572388 02/14/20
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Originally Posted by Mule Deer
Because it's a dying cartridge--even though it makes big game die quite well.


I know it doesn't sell well so I bought 2 new ones in the last year to pump it up a bit. If can't find ammo or cases in the future. maybe I'll rebarrel them to the much more popular 7x57. I only have 1 of those.

Last edited by Just a Hunter; 02/14/20.
Re: Why so little talk about 257 Robert's loads ? [Re: splattermatic] #14572494 02/14/20
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I've only had two....a 1982 Mod 700 Classic I had reamed to the Ackley (my first Improved) and I used the old Hornady 120HP seated way out. I used IMR 4350 too. I sold it, then, 10yrs later bought it back. My friend had cut the barrel off to 21" and it never felt the same. I had a 25-06 Mountain Rifle takeoff barrel put on. ...Later in life, I tried a Hawkeye 77 .257R and just could not seem to get better than 1 3/4" with several weights/styles. I traded it off. I see the Creedmoor as a "modern" .257 Roberts (popularity, marketing, heavier bullets, etc) I still think the 257 Ackley has the "cutest case". lol

Last edited by Jim_Knight; 02/14/20.
Re: Why so little talk about 257 Robert's loads ? [Re: splattermatic] #14573142 02/14/20
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My two....Mostly shooting 100 Hot-Cor, H4895....100 NPT, H4350....110 NAB, H4350....... Also have some 120 NPT and 100 TTSX that I haven't worked with at all.

[Linked Image]


Ed
Re: Why so little talk about 257 Robert's loads ? [Re: splattermatic] #14573168 02/14/20
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Been a Roberts fan since the early '70's. My current favorite is a BACO FWT launching 120gr Speer Deep Curls at about 2950fps. #2 is an XTR FWT, 100gr Hornadys.

If I were starting today, I'd probably go with a 6.5CM which, as has been said, has identical ballistics with bullets of 120gr and less. But I have too much material and emotion invested in the Bob to change now.

Alpha

Re: Why so little talk about 257 Robert's loads ? [Re: 308ld] #14573221 02/14/20
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Originally Posted by 308ld
My two....Mostly shooting 100 Hot-Cor, H4895....100 NPT, H4350....110 NAB, H4350....... Also have some 120 NPT and 100 TTSX that I haven't worked with at all.

[Linked Image]

Wood on that #1 is super. Factory?

DF

Re: Why so little talk about 257 Robert's loads ? [Re: southtexas] #14573235 02/14/20
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I have two rifles chambered to "The Bob", a Ruger #1B which is a sub MOA rifle with Norma factory 100 gr. loads. Too bad Norma doesn't load the "Bob" anymore. The other is a Winchester M70 XTR Featherweight that so far has been rather disappointing. My son in law has that same rifle and I did his load work up for it before teaching him how to do it himself. He wanted the 100 gr. TSX bullet and using H4350 worked up a load that does a bit under an inch. That same load in my rifle is more like a shotgun pattern. I tried 120 gr. Speer SPFB bullets and they weren't any better. I've been way too busy with other rifle projects so just haven't gotten back to the "Bob".
Since for the moment my doc has forbidden me to shoot any hard kicking rifles, I just may have to start playing with that rifle again. I was in a vehicle crash on January 2, 2020 that totaled my new truck and fractured my sternum. Nothing like starting the New year off right. I thought about doing the .223 Rem. or maybe the .243 but the more I think about it mayber I see what "Mr Bob" can do.
Paul B.


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Re: Why so little talk about 257 Robert's loads ? [Re: splattermatic] #14573242 02/14/20
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Sorry to hear about your accident. The Roberts can be loaded down to 250 Savage levels and still kill deer very well.


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Re: Why so little talk about 257 Robert's loads ? [Re: Jerseyboy] #14573260 02/14/20
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Originally Posted by Jerseyboy
Sorry to hear about your accident. The Roberts can be loaded down to 250 Savage levels and still kill deer very well.

The Roberts hardly kicks with full powered 100's, not bad with 117's and 120's.

DF

Re: Why so little talk about 257 Robert's loads ? [Re: splattermatic] #14573295 02/14/20
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My 257 Roberts - 98 Mauser action

https://www.24hourcampfire.com/ubbthreads/gallery/80/full/121996.jpeg

Loads that shoot 1 MOA or less at 100 yards:

100 grain Hornady Interlock - 46 grains IMR4451 - WW brass - CCI 200 primers

Nosler 115BT H4350 - 45 gr WW Brass CCI200

87 grain Hornady 50 gr IMR4350 Win LR

87 grain CT 50 grain IMR4350 WW Brass Win LR

87 grain CT ? gr RE15

Last edited by Bugger; 02/14/20.

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I prefer classic.
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Bravo

Re: Why so little talk about 257 Robert's loads ? [Re: Dirtfarmer] #14573357 02/14/20
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Originally Posted by Dirtfarmer
We really need more 3" actions for a number of rounds. My Roberts is in a LA and the way it was set up by a real master smith, it's one of the slickest feeding rifles I have, no matter how the rounds are positioned in the box mag.

DF


There's still a few Yugos floating around that won't break the bank. They aren't full length actions and are designed for the 57 MM case which still allows seating bullets out further than the Remington 700 Short Action. I built my AI on one. However I would like to make a recommendation. Don't use the Ackley Improved reamer. Try to find the RCBS reamer. It doesn't have quite the angle on the shoulder and the rounds will chamber better than the Ackley without any alteration. I had to file a little off the inside of the extractor to make the Ackley work.The amount of powder difference is negligible with the RCBS. If I had it to do over again that's what I'd use. Doesn't look quite as sexy as the Ackley, but I'm more into function than looks.

Last edited by Filaman; 02/14/20.

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Re: Why so little talk about 257 Robert's loads ? [Re: splattermatic] #14573409 02/14/20
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The good thing about the improved .257 is you can shoot the heavier bullets faster out of it. I use 115 grain Combined Technology bullets in mine and get 3000+ FPS MV with it. That puts it close to .25-06 performance. With 115 grain CT Partitions I wouldn't be afraid to try it on elk, something I wouldn't do with 100 grain bullets.

Last edited by Filaman; 02/14/20.

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Re: Why so little talk about 257 Robert's loads ? [Re: Dirtfarmer] #14573501 02/14/20
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Originally Posted by Dirtfarmer
Originally Posted by 308ld
My two....Mostly shooting 100 Hot-Cor, H4895....100 NPT, H4350....110 NAB, H4350....... Also have some 120 NPT and 100 TTSX that I haven't worked with at all.

[Linked Image]

Wood on that #1 is super. Factory?

DF


Yes Sir, factory 1985 vintage.


Ed
Re: Why so little talk about 257 Robert's loads ? [Re: 308ld] #14573606 02/14/20
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Originally Posted by 308ld
Originally Posted by Dirtfarmer
Originally Posted by 308ld
My two....Mostly shooting 100 Hot-Cor, H4895....100 NPT, H4350....110 NAB, H4350....... Also have some 120 NPT and 100 TTSX that I haven't worked with at all.

[Linked Image]

Wood on that #1 is super. Factory?

DF


Yes Sir, factory 1985 vintage.

I thought my red pad 220 Swift was pretty good, believe yours is better, more contrast and color.

DF

[Linked Image from i.imgur.com]

Re: Why so little talk about 257 Robert's loads ? [Re: Dirtfarmer] #14573677 02/14/20
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308ld Offline
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[/quote]
I thought my red pad 220 Swift was pretty good, believe yours is better, more contrast and color.

DF

[Linked Image from i.imgur.com][/quote]

I don't know, there are no flies on that 220. Is that a 26" 1V?


Ed
Re: Why so little talk about 257 Robert's loads ? [Re: splattermatic] #14573748 02/14/20
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My Ruger 77 MKII is a standard rifle, bedded in a Hawkeye stock. With Hybrid 100V it shoots the 100 Nosler BT at about 3250 fps. I am by no means a long-range shooter, but a while back from an improvised rest I went 5 for 5 on a steel torso at 550 yards, using the tapered bottom post of my crosshairs for an aim point. I have free-floated the barrel and tweaked the trigger. The only thing this rifle needs is more brass.

[img]https://previews.dropbox.com/p/thum...w/p.jpeg?fv_content=true&size_mode=5[/img]

Re: Why so little talk about 257 Robert's loads ? [Re: 308ld] #14573913 02/14/20
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Originally Posted by 308ld
[/quote]
I thought my red pad 220 Swift was pretty good, believe yours is better, more contrast and color.

DF

[Linked Image from i.imgur.com]


I don't know, there are no flies on that 220. Is that a 26" 1V?
[/quote]
Yep.

Kepplinger trigger that I installed. Bought it from Brownells before they got so expensive.

DF

Last edited by Dirtfarmer; 02/14/20.
Re: Why so little talk about 257 Robert's loads ? [Re: sqweeler] #14573931 02/14/20
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Originally Posted by sqweeler
AAA French,wrap around checkering on forend,love's 100gr TTSX's. [Linked Image from i.postimg.cc] [Linked Image from i.postimg.cc] [Linked Image from i.postimg.cc] [Linked Image from i.postimg.cc]


Fantastic!

I've been using a R77 in .257 since '86 for coyotes on up. It's still one of my favorites. I dumped a truckload of coyotes with the 75gr Hornady HP. I believe using IMR 4064 if I remember correctly. I've used 100's up to 120's. All were accurate enough for hunting, not a single load I've tried was impressive from the bench.


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Samuel Colt.

�Common sense is genius dressed up in work clothes.� - Ralph Waldo Emerson

Re: Why so little talk about 257 Robert's loads ? [Re: Filaman] #14573982 02/14/20
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Originally Posted by Filaman
Originally Posted by Dirtfarmer
We really need more 3" actions for a number of rounds. My Roberts is in a LA and the way it was set up by a real master smith, it's one of the slickest feeding rifles I have, no matter how the rounds are positioned in the box mag.

DF


There's still a few Yugos floating around that won't break the bank. They aren't full length actions and are designed for the 57 MM case which still allows seating bullets out further than the Remington 700 Short Action. I built my AI on one. However I would like to make a recommendation. Don't use the Ackley Improved reamer. Try to find the RCBS reamer. It doesn't have quite the angle on the shoulder and the rounds will chamber better than the Ackley without any alteration. I had to file a little off the inside of the extractor to make the Ackley work.The amount of powder difference is negligible with the RCBS. If I had it to do over again that's what I'd use. Doesn't look quite as sexy as the Ackley, but I'm more into function than looks.


I had Ray Montgomery rechamber a Savage 99CD from 250-3000 to 257AI a couple of decades ago. Ray recommended going with the standard 257 because he was concerned that the 40-degree shoulder of the AI case would feed poorly. I still believed that a little extra case capacity would result in a meaningful increase in velocity, so I ignored Ray's advice and had him make it a 257AI. It feeds OK, but probably not as smoothly as it would have without the sharp shoulder.

I think that if I was going to build a 257 Roberts or 257AI on a long action, I'd choose the path of least resistance and make it a 25-06 instead.

Re: Why so little talk about 257 Robert's loads ? [Re: Filaman] #14574009 02/14/20
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Filaman,

I got considerably more velocity out of the .257 AI when I was using one 20 years ago, but I was more of hot-rodder then.

But have also gotten 2950-3000 fps out of 115-120 grain bullets in the standard .257 with modern powders by adding only a grain or so to +P data.

However, eventually sold my .257 AI because even with 115s at 3100 and 100s at 3300, I never could tell any difference in trajectory or "killing power."


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John Steinbeck
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