Definitely a keeper my 8x57JS

[Eagleye]

So, last year I purchased a rifle from a gunnut on here. It is a Remington 700 BDL
It has been rebarrelled with a Benchmark 1 - 9½ twist 8mm barrel and chambered
8x57JS.
I did not have much time to try loads, but threw together a load that shot well. 196
grain Alaska, chased by 5x of WW 760 WLR primer all in a PPU case.

This spring, I decided to do some work with it, so I ditched the BDL lumber in favor of
a Boyd's plain walnut in the Classic design.....fits me perfectly. I dropped a VX III 3.5-
10 x 40 on it. Adjusted the Walker trigger to 2-¾ lbs.

I loaded some test loads using the following bullets: 180 Ballistic Tip, 185 Cor-Lokt,
196 Alaska, 196 Norma Dual-Core, 200 Speer FB, 200 Partition, 200 A-Frame.

Powders used were: W760, W760 SL131, 100V, IMR 4451, Reloder 17, Norma 204,
IMR 4350.

Imagine how pleased I was to find all these bullets shooting to the same POI at
100 meters. You could have shot 3 different bullets/loads at a target, and they
would produce a small group just as if you used 1 bullet/load.

Obviously at longer range there will be differences, but for a rifle to do so well with
different weights at 100M is definitely a bonus!

The only other rifle I have ever owned that was like this is an early production 700
in 270 Winchester. It shot 130, 150 and 160 Partitions to the same POI at 100.

I think I will keep this one! EE.

 

[Joel]

Sounds like a real gem, EE. One that definitely shouldn't go anywhere!

 

[DGY]

When you find something like that you keep it for sure!!

 

[Mumbles Marble Mouth]

Funny thing about the 8x57JS is Infact it's not JS it's actually IS. The JS comes from the English mistaking the German cursive I for a J. The I stands for infantry and the S for spitzer. Lots of European ammunition companies even follow along the J instead of the I to avoid confusion with American customers.

 

[Eagleye]

Funny thing about the 8x57JS is Infact it's not JS it's actually IS. The JS comes from the English mistaking the German cursive I for a J. The I stands for infantry and the S for spitzer. Lots of European ammunition companies even follow along the J instead of the I to avoid confusion with American customers.

Well aware of the actual IS designation. I just prefer to use the J, since it is quite common in NA. Dave.

 

[track]

I as well had a portion of your success/results. I recently purchased a BSA Viscount in the 7x57 Mauser and loaded it with Hornady 139 gr. SP Interlock Flat-base. Using PPU brass (very first time) Federal 210M, IMR-4064 and Win. 6.5 Staball. Point of impacts were the same with both powders, however the 6.5 Staball proved a little more accurate, and temperature insensitive.
I haven't measured the velocity with the chronograph, however, with 46 gains of 6.5 Staball, and a 24" barrel, it should achieve 2,700 fps, I'll know sometime next, or this week, once the temperature cools down. Accuracy is at .550".

 

[mimile]

Great rifle (and shooter) Dave.
Would you say you have there a great all around caliber for NA for short to mid range, say within 300 meters?

 

[Eagleye]

Track, you also have a winner there, and in one of my very favorite chamberings,
the venerable 7x57.

I had a BSA Monarch in 270 Winchester that was fussier, but loved the 130 Partition.
Interesting aside: the rifling in that rifle had left hand twist.

I believe there is an unlucky spring Black Bear not far away that needs to
receive a test round from my 8x57 in a practical way, lol. EE

 

[Eagleye]

Great rifle (and shooter) Dave.
Would you say you have there a great all around caliber for NA for short to mid range, say within 300 meters?

Easy 300M rifle. I would say that with the 180 Ballistic tip, the 185 Cor-Lokt, or the 200 Partition,
I would extend effective range to 400M.

If I am shooting the 180 BT, and sight in +3" @ 100Y, at 300Y I will be down only 4.5"
and at 400, down only about 19" still tripping along at 1950 FPS at 400 Kill anything I hunt. EE

 

[Potashminer]

I as well had a portion of your success/results. I recently purchased a BSA Viscount in the 7x57 Mauser and loaded it with Hornady 139 gr. SP Interlock Flat-base. Using PPU brass (very first time) Federal 210M, IMR-4064 and Win. 6.5 Staball. Point of impacts were the same with both powders, however the 6.5 Staball proved a little more accurate, and temperature insensitive.
I haven't measured the velocity with the chronograph, however, with 46 gains of 6.5 Staball, and a 24" barrel, it should achieve 2,700 fps, I'll know sometime next, or this week, once the temperature cools down. Accuracy is at .550".

I owned and hunted with a Ruger No. 1A in 7x57 from Jan. 2004 to Aug 2015 - the only load that I worked up to is the Max given on page 378 in Nosler #9 manual. I never got the 2831 fps speed with 150 grain Partitions, but was usually over that 2,800 fps on my Shooting Chrony - sometimes a few fps below. So your 140 grain at 2700 would be eminently doable, I would think?? My Ruger No. 1A had 22" barrel - Nosler numbers are reported from their 22" Lilja barrel. I was not getting nearly as tight groups as you get - mostly between 1" and 1.5" for 5 shots at 100 yards from sandbags. I do not recall ever firing at an unwounded deer over 300 yards, so that was plenty accurate enough for me. I took many dozen white tail and mule deer with that rifle and load.

 

[Eagleye]

I have owned a couple of #1 Rugers in 7x57 [both #1ABs] They shoot plenty well enough for hunting, and are super
handy with their 22" barrel. I reached 2880 with the 140, using Norma MRP... EE