Well it is official my 10,3 barrel is comming for my Blaser. I know that Blaser makes ammunition for the calibre, I have brass and dies, any good resources for bullets and reloading data?

Aleko

Aleko,
Sorry you are not doing the bear hunt. What diameter does the 10,3 use. I have had excellent results with the Hawk .408 diameter 300 grain .025jkt bullet on deer and pigs at 2330fps.
I would use the .035jkt bullet on bigger game.

Aleko,

Call the folks at Wolfgang Romey, and ask them what they put in there Blaser ammo!

Superior is pretty brilliant about things as well. I have used them for information before.

Seth

PS I talked to the other WR and the rifle will stay at that price for another 3 months, and then will talk!

@all

Welcome to the 10,3X60R aka 450/400 2 3/8 “BPE†club!

I’m using this rifle since 1989. I own a R93 Blaser with this barrel. The normal Ammo I’m using is from Blaser SM-Thun and once I used RWS cartridges 10,3X60R called Kegel-Spitz.

Please see this link of my Africa Trip in 2003, which I did with my R93 10,3X60R!
10,3X60R in Africa

Due to the fact that I had some bullets failures in Africa I decided to produce my own .413 bullets. Here a Link to the webpage Gian-Marchet® Bullets
Sorry - only in German.


This post I have done a month ago showing some of my bullets reloaded in the 10,3X60R cartridge…
More infos of the 10,3X60R


Good shooting and good hunting
Collani

The bullets look great. Do you have any data with IMR or Hogdon powders ?

Aleko

@Aleko

Bullet: Gian-Marchet® 270 Grains
OAL = 85,80m (3.378 in)
Hogdon Varget

Predicted data by increasing and decreasing the given charge, incremented in steps of 1% of
nominal charge. C A U T I O N: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge weight Muzzle vel. Muzzle engy. Max. press. Muzzle press. Prop.Burnt
% % Gramm Grains m/s fps J ft.lbs bar psi bar psi %

+05 095 0004.627 0071.40 0807 2648 5699 4204 2974 43143 0455 6600 096.24
+04 094 0004.583 0070.72 0800 2624 5596 4127 2887 41871 0450 6534 095.90
+03 093 0004.539 0070.04 0792 2600 5493 4051 2801 40627 0446 6467 095.54
+02 092 0004.494 0069.36 0785 2575 5390 3976 2718 39426 0441 6398 095.17
+01 091 0004.450 0068.68 0778 2551 5289 3901 2637 38256 0436 6328 094.79
+00 090 0004.406 0068.00 0770 2527 5188 3827 2559 37117 0431 6256 094.39
-01 089 0004.362 0067.32 0763 2502 5089 3753 2483 36018 0426 6184 093.97
-02 088 0004.318 0066.64 0755 2478 4990 3680 2409 34946 0421 6110 093.55
-03 088 0004.274 0065.96 0748 2453 4892 3608 2337 33906 0416 6035 093.11
-04 087 0004.230 0065.28 0740 2429 4794 3536 2268 32898 0411 5959 092.65
-05 086 0004.186 0064.60 0733 2404 4698 3465 2200 31913 0405 5881 092.18
-06 085 0004.142 0063.92 0725 2380 4602 3395 2134 30960 0400 5803 091.70
-07 084 0004.098 0063.24 0718 2355 4508 3325 2070 30032 0395 5724 091.20
-08 083 0004.054 0062.56 0710 2330 4414 3256 2008 29130 0389 5644 090.69
-09 082 0004.010 0061.88 0703 2306 4321 3187 1948 28255 0384 5563 090.16
-10 081 0003.966 0061.20 0695 2281 4229 3119 1889 27405 0378 5482 089.62


All load suggestions at your own risk...

Good shooting and good hunting
Collani

I think a 10.3x60R would be a good bbl for the Blaser K 95, too.
Aleko I hope you have it up and running in June when I pass through SLC.

@all

to bring this post up...

Good shooting and good hunting
Collani

Hi collani,

since you are "Mr. 10,3x60R" on this board - are you aware of any non-custom-made double rifle made for it?
I always found the idea of having one for hunting driven boar intriguing. Funny Blaser never offered it in their S2 but created the oddball .45 Blaser instead.

Cheers,
Roman

EuroHunter,

You know Blaser makes a K95 barrel for it.

Hi D99,

yes - i know. But my prime interest would be using the 10,3x60R for hunting driven boar since it looks promising for that. A Blaser K95 does not fit for that.
Obviously we will need to wait until the boars also conquer the Graubuenden montains .

Cheers
Roman

Roman,

My father has a K-95 that I gave him for Christmas last year. He wants a bigger cartridge than the 30-06 and 243 he owns barrels for. I was thinking about the 9.3x74R or the 10.3x60R. I may get both as I am interested in both.

D99, you have to like jumping guns to get either caliber for the K95. It is a pretty light gun, and tends to kick up pretty well with heavier calibers. Apart from that, the 9.3x74R is the more practical of the two calibers. Really should be chambered in a double, though.
- mike

Mike, Your right about that. The damn K95 whill whack you pretty good, even in 30-06.

Both cartridges are better suited to doubles. I always thought Blaser should make a double rifle based on the 45-70 or 444 Marlin cartridges for the American market.

It would be a hell of a hog gun.

I have always made mention of the fact that a .45 70 K95 would be a great addition to the line too

Aleko

Aleko,

Order a few and I will take one in 45-70.

I think for proofing reasons and the international appeal a .444 with heavy bullets may be a better request ?

Aleko

You guys must be bored.

Yep!

I will take one of those too.

Aleko,

When I get back from Namibia in August, I want to talk to you about a black safari synthetic stock, and 2 more barrels 9.3x64 with sights and a 8x68 with sights. I also want two rail mount Zeiss' for the barrels. 1.75-6 and 4.5-14. I have to pay for taxidermy first.

What is the bore diameter, of the 10,3?

Collani, have you ever exported your bullets?

I have the RWS brass, looking for bullets

Aleko

Hi Aleko

The diameter of the 10,3 bullets is exactly 0.413 inches (10,50mm). The bullets are available in Switzerland. I once send some bullets in Germany and in Austria. But no experiences sending to the USA! I have to check if I could find a gunsmith which has done some export to Your country.

RWS brass is good, the accuracy of the 10,3x60R is very good. SUB-Moa is no problem!

Good shooting and good hunting
Collani

Aleko couldn't we shoot .411 405 WCF bullets out of this thing?

.002 isn't much differnce to worry about.

I supposed a guy could call Hawk and askt hem to swage some to that diameter.

Or you could just ring Woodleigh and order some of his?

Cheers, Dave.
Non Illegitium Carborundum

@all

I have tried the following bullets for the 10,3x60R:



From left to right.
- Barnes "X" Bullet 0.411/300 Grains
- Swift A-Frame Bullet 0.411/350 Grains
- Hornady Bullet 0.411/300 Grains
- Woodleigh Bullets0.412/300 Grains
- Gian-Marchet® "Original" Bullet 0.413/254 Grains.

The Muzzle-Velocity with the factory Bullets were around 680m/s (approx. 2230 fps). The accuracy of those loads was approx. 1 ½ inches at 109 yards (100m). The pressure were about 2’900 Bar.

If you can live with those loads, then go ahead!

Good shooting and good hunting
Collani

In my 450/400, and 9,3 doubles I have used Hawk bullets with great results.
In the 450/400 I have killed deer and several pigs with a 300 grain .025jkt at @2330fps. This bullet expands pretty good, as it coins out most of the time. I recover about 50% of them from hogs shot broadside. I have also used a Hawk 400gr .035jkt bullet in the 450/400 at @2150fps on one hog. He was hit running with a quarting shot. The bullet was recovered with a good mushroom, but still had some shank on it.
I have also taken several deer impala and wild pigs with a Hawk bullet in my 9.3x74R. I used a 285 gr .035 jkt bullet at @2330 fps, again with excellent performance.
Baised on all of the above I think a Hawk bullet of 350 grains with the .035jkt would be about right for the 10,3.

Hawk bullets have given me almost 100% one shot, drop to the shot kills.
I think one pig ran about 20 feet.
http://www.hawkbullets.com

I was guessing we could use .411", I was thinking about paper patch lead bullets too. I noticed the woodleigh, but I like the shape of Collani's bullets.

The barrel should be here any day

Aleko

And, if you run into trouble with the brass, our friend Bruce in Victoria makes the Blaser factory stuff, too.
This is one cartridge I would have liked to have seen as a BBF in the 95/97.

Cheers, Dave.
Non Illegitium Carborundum