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  #1  
Old 11-24-2007, 10:12 AM
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Question Need some recommendations for .257 Roberts


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I need some recommendations for loading the .257 Roberts. I'll be using a Ruger Hawkeye rifle. It has a 1 in 10 RH twist. I'd like to work up some varmint loads using 75 grain hollow points. Are 75 grain bullets accurate with this twist, or will I need to move up to 87 grain bullets? Also for deer I'd like to use either 115 or 120 grain bullets. Which is better with this twist, or are they about equal?

Powder wise I was thinking IMR 4350. Any thoughts on IMR 4350 for these loads? Would H4895 work very well since I have a lot of it on hand? Any thoughts on this would be appreciated. Thank you.
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  #2  
Old 11-24-2007, 10:29 AM
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Best I can say is your going to have to try them out. Predicting what a certain rifle will do with a specific bullet is an arcane thing. There's a certain amount of witchcraft involved.

I've seen two identical rifles side by side that one bullet would shoot great in and not in the other. That's why we all search for that perfect load for our particular rifle. Even changing powder type can make a great effect.

Try the stuff you've got on hand before looking at stuff you've got to buy if their compatible with your cartridge.

I like the Lee manual because it gives you loads from Highest velocity to lowest. Usually the powder that gives the best velocity even loaded down 10 percent will also give the best accuracy.

A 10 percent drop in a top load will usually only reduce velocity by around 2 percent and from my experience almost always increases accuracy and reduces group size.
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  #3  
Old 11-24-2007, 11:32 AM
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My .257 has a 1-12 twist and a definite preference for lighter bullets. The Sierra 75 grain bullets have been the most accurate choice in my rifle.

I use the Sierra 90 grain HPBT for deer hunting and have killed a couple of truck loads of deer with them. I will take the extra velocity over another 30 grains of bullet weight.
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Old 11-24-2007, 12:10 PM
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The faster twist 1:10 (faster) vs 1:12 (slower) will allow your gun to stabilize the heavier bullets and shoot them accurately. You will not have a problem with lighter bullets. If you haven't done so already, you might take a look at Speer TNT bullets. They seem to do well for everyone who uses them......including me. My quarterbore is a 25-06 and it really likes the 100 grain Nosler Ballistic Tips.
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Old 11-24-2007, 09:02 PM
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Varget works well with 75gr. Sierra HPs in my rifle, as well as 100gr. Cor-Lokts and old discontinued 100gr. Nosler Solid Base bullets. Haven't tried the heavier bullets as both of those will punch through deer and hogs without problems.

Good luck.
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  #6  
Old 11-25-2007, 04:10 PM
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IMR 4350 and 100gr Hornady work good for my moms257 for deer.
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  #7  
Old 11-28-2007, 08:32 AM
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Kermit,

I bought a Hawkeye in September and have used it on a WY antelope and two MO whitetail does, all with handloads.

My gun didn't shoot factory ammo particularly well but that was during the first 50 or so rounds fired in it. Factory ammo may do better after break in.

Seating depth seems to be important to my .257. At least the handloads do better than factory. I am still under 200 rounds through the barrel. I will not make any specific claims. My loads have been right out of loading manuals except for seating depth.

Antelope load was Win. brass, CCI 200, Hdy 117 SPBT, 41.0 gr. IMR 4350. 3-shot groups from benchrest at 100 yds. were running 1.2" - 1.5" using Weaver K3 scope.

Whitetail load was Win., CCI 200, Nosler 115 gr. Partition, 35.0 gr. IMR 4064. From sitting position I got 3-shot groups of 0.578" (+2.0") @ 100, and 4.5" dead on at 200 yds.

I do not have MV for any of these loads. September - November is too busy to get to the finer points of load development. Since I only bought the gun mid-Sept. these are my "quick and dirty" development loads.

BTW, no bullets were recovered from these three game animals. The antelope was about 125 yds+/- and shot low through the chest. The deer were together and about 100 yds away. Both were shot through the neck.

I am looking forward to really getting to know this gun through the winter. So far I really like it. I can see why Jack O'Connor felt it was an effective caliber which his wife and growing sons used often.
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Last edited by naumann; 11-28-2007 at 08:34 AM.
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  #8  
Old 11-28-2007, 09:17 AM
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Quote:
Originally Posted by naumann
Seating depth seems to be important to my .257. Antelope load was Win. brass, CCI 200, Hdy 117 SPBT, 41.0 gr. IMR 4350. 3-shot groups from benchrest at 100 yds. were running 1.2" - 1.5" using Weaver K3 scope.

Whitetail load was Win., CCI 200, Nosler 115 gr. Partition, 35.0 gr. IMR 4064. From sitting position I got 3-shot groups of 0.578" (+2.0") @ 100, and 4.5" dead on at 200 yds.

Since I only bought the gun mid-Sept. these are my "quick and dirty" development loads.

BTW, no bullets were recovered from these three game animals. The antelope was about 125 yds+/- and shot low through the chest. The deer were together and about 100 yds away. Both were shot through the neck.

I am looking forward to really getting to know this gun through the winter. So far I really like it. I can see why Jack O'Connor felt it was an effective caliber which his wife and growing sons used often.
There's some fine advice up there for this caliber. Almost tripped over a very early Rem Mtn Rifle in this caliber few years ago and got it just for the project of reloading the caliber. Other than the OAL issue already addressed above, it was a snap & one would do well with 4350 and 4064. Sounds like your "development" loads are keepers.

I ended up passing that rifle along to another range rat (and MV-freak) for his wife, only with the proviso that he wouldn't 'Improve' it or soup it up. This is still a great caliber if accepted for what it is; there's little gained by really hotting it up - if you want that get a 25-06. It will bring the meat home and is a gun you can always hand a visiting guest (guy or gal) and they should be comfortable with it. But be careful! They might not want to give it back.
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  #9  
Old 11-28-2007, 12:04 PM
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I have used the 75 grain bullets in my .257 Roberts with good success. I don't think that the differences in twist will amount to anything. Try the 75 grain and see how they shoot. I would also suggest that your H4895 would be a good powder with the 75 grain bullets. I have used the similar IMR 4895 for these lighter bullets.
For your heavier bullets, any of the 115, 117 or 120 grain bulles will work fine for deer sized game. Your 4350 is a good choice for those bulllet weights. I have been using 120 grain bulllets, simply because I bought a bunch of Remington bulk 120 grain, and some Hornady 120 grain. They work fine, I get good accuracy and velocity (using 4350), and they perform well on deer.
Enjoy your .257 Roberts.
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  #10  
Old 12-20-2007, 12:31 AM
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I have shot about 1000 seara 90 gr. hpbt in my m77 and all were 1 hole and on a bad day very close, 42.9gr. of 4064 seated out to just touch the lands, then 44 gr. 4064 with 100 gr. barnes coated also a 1hole load. Now I'm going to go to a 100 gr. triple shock (another barnes)and have to work it up and if you are like me you will have fun doing it also. Both of those loads are HOT so don't start with them if you try. I have killed a bunch of deer and varmets and even 5 elk so it will do the job you just have to do yours, work the load and shoot it ALOT.
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  #11  
Old 12-20-2007, 04:33 PM
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Have loaded different bullets and gave thought to it just
load the 100gr for all my shooting now varmints to deer..
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  #12  
Old 03-14-2008, 08:36 PM
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I have the Ruger .257 Mark II as well, I am just starting loading for it now, but can tell you it's an absolute tackdriver with the Hornady 117 factory loads. However will yours work with the same bullets, who is to say, each rifle is different and may like different bullets.
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  #13  
Old 03-15-2008, 03:34 AM
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I would try the 75 gr Hornady HPs for varmints, possibly with 4064. Good speed, trajectory, terminal performance on large groundhogs. And my .25 liked the Sierra 117 gr BTSPs with 4350 better than anything accuracy wise, and I never found the terminal performance lacking on deer, even way out there. The Sierra 117 gr flat tail Spitzers shot okay too, but just not as good as those BTs.
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  #14  
Old 03-17-2008, 03:56 PM
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Sierra 117SBT, IMR4064, CCI 200, Rem cases.

Hornady 87Spire, IMR4320, CCI 200, Rem cases
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  #15  
Old 03-17-2008, 04:31 PM
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Don't own a .257 Rbts., but have close hunting/shooting buddies that do. IMR 4350 is a good choice, stick with it. Seems to me that 117-120 gr. bullets would be a mite slow velocity-wise. I think 100 gr. would be a better choice in the .257 Robts. or maybe 87 gr. for varmints. Just my observations.

Rev
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  #16  
Old 03-20-2008, 01:46 PM
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My Roberts was a 93 Mauser, speedlocked, with a 24" Douglas 1 in 10 barrel. For reasons I never understood, it shot 75 spire points and 87 spitzers into 3/4" @ 100yds, using 4064. I was never able to group that tight with the heavier bullets and slower powders like 4350.

Bud W
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