9.3x57 or 9.3x62

I would go 9.3x62 - more power, better selection and cheaper factory ammo.
You can still get the 286 gr PRVI ammo for $30/box which is what the non premium 308 win and 30-06 is selling lately...
 
Here's the stats for the 9.2 x 62 one can find from Privi Partizan. http://www.ppu-usa.com/ppu/9-3x62/
Bullet Wgt./Style 285 SP
Ballistic Coeficient 0.332
Bullet Striking Velocity in FPS at Yardage Indicated
Muzzle 2265
100 2025
200 1800
300 1595
Bullet Striking Energy in ft-lbs at Yardage Indicated
Muzzle 3252
100 2597
200 2052
300 1610
Bullet Path Above / Below Sight Line
100 0
200 -7.6
300 -26.2
 
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This load is from NORMA and is just under 100 FPS faster then the PPU ammo listed above. http://www.norma.cc/en/Products/Hunting/93x62/Norma-Oryx-285-gr/

Bullet type Bullet weight Ballistic coefficient Product number
Norma Oryx 18.5 g / 285 gr 0.33 20193132
​​Velocity
V0 V100 V200 V300
720 (m/s) / 2362 (f/s) 638 (m/s) / 2115 (f/s) 561 (m/s) / 1883 (f/s) 491 (m/s) / 1669 (f/s)

Energy
E0 E100 E200 E300
4797 (J) / 3544 (ft.-lb.) 3764 (J) / 2841 (ft.-lb.) 2915 (J) / 2252 (ft.-lb.) 2234 (J) / 1769 (ft.-lb.)

Zero range, meters Height of trajectory above line of sight if sighted in at X meter. For sights 40mm above bore

50 80 100 150 200 300 m
80 1 -12 -85 -226 -754
100 7 10 -67 -203 -719
150 29 45 45 -113 -584
200 57 91 101 85 -415

Sighting distance in yards Height of trajectory above line of sight if sighted in at X yards. For sights 1,6 inch above bore
50 100 150 200 300 yds
50 -0.1 -2.2 -6.5 -22.7
100 0.1 -2 -6.2 -22.3
150 0.7 1.3 -3.5 -18.3
200 1.6 3.1 2.6 -13

Winddrift in mm for a 5 m/s cross wind
100 200 300 m
44 185 443

Winddrift in inches for a 10 m.p.h cross wind
100 200 300 yds
1.3 5.4 12.8

* One may find the original source to be friendlier to view.
 
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Nice to see people advising more gun! The 62 is the way to go imho, you can also play with cast. I would love something in 9.3-74r. I thought there would be"" get a SKS its good enough " or wy not just use a 243 ( or any other ). I too feel a good 98 is a rifle that is strong and attractive.
 
Don't go by posted data for the 62, most is for the older rifles the cartridge has been around since 1905, my most accurate load is a 270 Speer at 2525 fps out of my Tikka T3, I can push the 250's at 2600 fps without any excess pressure.
 
Yea batt119 I agree with your recommendation that a 270 grainer is probably the best weight with less drop then a 285 or 286.

I also compared some load data between a 35 Whelen and the 9.3 x 62 and discover that the 9.3 x 62 shows a lesser amount of pressure. I suppose that this may mean that a cartridge (brass case) with a larger diameter mouth and neck allows the spent gases to flow more freely from the blast of the primer and powder burn.

And to bigborefan there is some real good info on the bigbore site. Definitely worth a read through the whole series of writtings.

I finally settled on a scope for the 9.3 x 62. I'm up for some test firing and break-in for a new barrel. The load data I posted earlier is modern data from OEM cartridge/load/bullet combinations. There may be room for hotter loads.
 
I like to shoot he 270 Speers mainly because of the price $35 for 50, they can be hard to find, I talked to the distributor he told me only Wholesale sports orders them.

What's your favorite powder ? I have had the best results so far with IMR4895, I have some Reloader 15 I was going to try with some 286 Privas
 
bat119 said:
I like to shoot he 270 Speers mainly because of the price $35 for 50, they can be hard to find, I talked to the distributor he told me only Wholesale sports orders them.

What's your favorite powder ? I have had the best results so far with IMR4895, I have some Reloader 15 I was going to try with some 286 Privas
Click to expand...

I thought tradex was also stocking these at one time ?
 
bat119 said:
I like to shoot he 270 Speers mainly because of the price $35 for 50, they can be hard to find, I talked to the distributor he told me only Wholesale sports orders them.

What's your favorite powder ? I have had the best results so far with IMR4895, I have some Reloader 15 I was going to try with some 286 Privas
Click to expand...


I used H4895, loads were recommended by WhyNot?. Tradex usually stocks the speer 270r.
 
We have seen a post of a 286 grainer reaching a velocity of 2510 fps. I'm not sure that I would recommend a load with that velocity because I've checked two reloading sources and they do not list achieving that velocity in their printings.

1. The first source is HODGDON RELOADING 2011. They list H4350 with 64.0 grains at 2321 velocity and 67.0C at 2438 velocity which produces 44,600 CUP. The test was with a 24 inch barrel.

2. MODERN RELOADING 2ND ED. RICHARD LEE reprinted 2014. This book was purchased based on a recommendation by an employee of Elwood Epps who stated that it was one of the best reloading printings to obtain and use for reloading. This publication agrees with Hodgdon and references H4350 as the top powder for velocity. Where 64.0c grains produces 2321 velocity as a starting load and states: Never exceed 67.0c grains and achieves 2407 velocity at 46,300 CUP. Does not state the length of barrel but we could assume that tests were out of a 24 inch barrel.

The Zastava M98 (M70) has a barrel length of 22 inches. I just measured one to verify the length of the barrel. And one can expect to give up a bit of velocity when using a barreled action that is 2 inches shorter then the test barrel used in RELOADING Publications Like HODGDON AND RICHARD LEE. So if my reloads were 100 fps less our of my 22 inch barrel I would be satisfied with a ball-park velocity of 2300 fps.

In all honesty I haven't started reloading for the newly obtained Zastava 9.3 x 62 yet. I am doing barrel break-in procedures and I am really liking what I have achieved with my initial groups. As I sighted in the scope - I walked the group from 6 inches low 4 inches right to achieving bulls-eye, at 50 yards. It took 6 bullets to achieve this and I was using PPU 285 grain.

And Bullet 5 & 6 were over-lapping each other. I stopped there because I had achieved what I had started out to achieve. Which was to break in the barrel and adjust the scope. What I did was: Take the 1st shot - clean barrel and make adjustment to scope. Take the 2nd shot clean barrel and make adjustment to scope, 3rd shot clean barrel and make adjustment to scope, 4th shot clean barrel make adjustment to scope. 5th shot - bulls-eye achieved and cleaned barrel. 6th shot verify shot on bullseye, clean and put it away.

It was nice and sunny and the snow was making a major retreat as the warmth of the day took it's effect on the snow. It was about 12 degrees and the barrel was able to cool in between shots. I applied the cleaning agents, bore bush and patches very soon after each shot so that the residue from the primer / powder burn and copper did not have a chance to harden up and this made the removal of the residues much easier. The initial shooting and cleaning ritual on a new barrel helps to break-in the barrel so that it will provide the best accuracy. Also, prior to each cleaning I saw less residue.

Here is an interesting article that I trust many of you will appreciate.

https://www.riflemagazine.com/magazine/article.cfm?magid=95&tocid=1379
 
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Reaching 2500 fps with 285-286gr bullets is actually fairly easy depending the gun. I worked up the loaded in increments. Starting load was about 2400fps-and reached 2510fps with no pressure signs. Bolt lift was very easy, no flattened primers, everything seemed normal, so that load was safe in my gun. A lot of the data in books are underloaded as their are a lot of old 9.3x62's in 96 actions or old fragile 98's. But when you have a modern gun you can load it to its real potential.

Check out this data from real gun, it goes to show what the 9.3x62 is really capable of safely getting.

http://www.realguns.com/loads/93x62mm.htm
 
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