CZ550FS 9.3X62 Mauser - Interesting Ballistics

Riflechair

Riflechair

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It was raining heavily today
Perfect opportunity to go to the range and try out some new loads.

I've settled at 58gr of Reloader 15 behind a 286gr Privi Round Nose at just over 2300 fps. Groups are 1.25" without having to work hard at all.

The compromise is 3" high at 100m to give me 4" low at 200m. Still minute of moose in my books.

That is a 7" drop between 100m and 200m

That tells me that Geez 250m + and that moose might be out of range.
Any comments?

Cheerio
RC

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I'd use mine out to 300 on moose.Still no problem to lob one into a rib cage.I'd stay away from the 286gr Hornady though as I had one turn to confetti on a moose shoulder blade at 200 yards a couple falls ago.The Privi ones are tougher...........Harold
 
Pretty much in line with my experience with my 9.3X62. With 59 grs of RL15 and 286 gr partitions I'm at about 2360 fps from a 21" barrel. With 59 grs of Varget I'm closer to 2400 fps with noticeably better accuracy.
 
mbogo3 said:
I'd use mine out to 300 on moose.Still no problem to lob one into a rib cage.I'd stay away from the 286gr Hornady though as I had one turn to confetti on a moose shoulder blade at 200 yards a couple falls ago.The Privi ones are tougher...........Harold
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That's good to know about the toughness of the Privi bullets. I've got a bunch but I haven't hunted with them. I have found the Hornadys to be significantly more accurate than the PP's.
 
Have you run your numbers through a ballistics program to find out the drop past 250 meters?? I don't think the 9.3x62 is the flattest shooting rifle, but IIRC, I had asked about the range limitations on them awhile back and about 300 meters seemed to be the answer.

If you're looking to reach out with less drop you might consider kicking the bullet in the rear a bit harder, different powder for more velocity, or going to a lighter bullet.....because 250-270 grain bullets are light.:p
 
Mauser98 said:
Pretty much in line with my experience with my 9.3X62. With 59 grs of RL15 and 286 gr partitions I'm at about 2360 fps from a 21" barrel. With 59 grs of Varget I'm closer to 2400 fps with noticeably better accuracy.
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I'm a big fan of Varget for the 9.3x62. Using 59 grains IIRC I was running 2420-2440 fps through a marlin XL-7 with a 24" McGowen barrel. A bit punchy off the bench.:)
 
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Mauser98 said:
Pretty much in line with my experience with my 9.3X62. With 59 grs of RL15 and 286 gr partitions I'm at about 2360 fps from a 21" barrel. With 59 grs of Varget I'm closer to 2400 fps with noticeably better accuracy.
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where did you get those datas ?

did you find any pressure sign ?

all the best.
 
You're burning 4 less grains of powder than me for very similar results (though I'm using 286 Norma RNs). I'm not concerned with performance past 200 yards as mine doesn't wear a scope.
 
The barrel is 20.5"
I'm fine staying within 200 metres.
I prefer the bigger slugs
I just found it interest is all.

I used to run 200gr RN in my 35 whelen and was running them at 2650 fps
I could engage targets at 300m without worry

If I need to reach out and touch a furry critter outside of 200m I have a 300 WSM to fall back on.
 
59.3 of varget behind a 286 nosler gives me 2480 fps in a 22 inch heym barreled FN 98, plenty flat with the bc of the nosler. I can get 2500 fps with the 286 with no pressure signs in both my rifles and 2650-2700 fps from a 250 with Rl 15 and no pressure signs . John Barness over on the campfire states he has had both loads tested to around 60,000 psi.

Ive killed elk, deer and black bear with the Privi's so far with very good results but will be running partitions and tsx this year.
 
If you have confidence in your load, there's little reason to change it. Your ballistics allow for a 300 yard shot, with the proviso that accurate range estimation is more critical with a steeper trajectory. At 300 yards you don`t need to rush the shot, if you have a range finder determine an accurate distance to target, adjust your hold accordingly, and if you believe the shot is within your ability given the present conditions, press the trigger. If all is good, a hold on the top of the spine should allow for a hit in the lower third of the chest.
 
Super well worded and thought out response

Boomer said:
If you have confidence in your load, there's little reason to change it. Your ballistics allow for a 300 yard shot, with the proviso that accurate range estimation is more critical with a steeper trajectory. At 300 yards you don`t need to rush the shot, if you have a range finder determine an accurate distance to target, adjust your hold accordingly, and if you believe the shot is within your ability given the present conditions, press the trigger. If all is good, a hold on the top of the spine should allow for a hit in the lower third of the chest.
Click to expand...
 
In my T3 Lite I'm 58grs RL-15, Hornady brass (really S&B), WLRM primers and 2400+ fps from the 286 Hornady. It's sighted dead-on at 100yds with .75 MOA. The load is for bl. bear and I have no fears of it not working very well. It's the same bullet as being loaded by Remington this year for the 9.3 X62. And, the same construction as the 270gr Hor. Interloc loaded by Hornady for the .375 Ruger, which has been successfully used in Africa on Cape buff. One shot, one very dead buff. Also on other Plains game. One shot, one very dead water buck. Not by me... but as reported in Petersen's. If the 270gr at 2800+ will work like that, then the 286 Hornady at 2400 should be equally as good, except for range. It has a decent BC of .410. From my rifle, sighted +3.3" at 100, it's good for moose to 400yds with a hold on the "hump".

All bullets will fail at times. None are perfect, just ask me how I know that!

I could easily push that bullet (and probably the Partition) to 2470 using RL-15, but I don't need to. The POI never changes and sub-MOA is consistent. Our bear season begins this week and I'll report here if the one wanted shows up in my crosshairs.

Bob
 
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