Bullet weight for 9.3x62

[sgt_zim]

But for the question at hand...

If you can get an accurate load with a 250 gr NAB at 2500 fps, your 9.3 will perform well. I've never killed anything with a NAB of any caliber, but my understanding is that their jackets are just about as stiff as Swift A Frame, which means below about 2k fps, you won't get a lot of expansion. And this bullet at 2500 fps MV will drop below 2k fps right at 300 yards.

Another 100 fps at the muzzle will extend you to 350 yards before it drops below 2k fps..

Meant to add this.

While I'm a Swift fanboi, the BC on the 250 gr AF is .285, vs .494 for NAB. At 2600 fps MV, AF 250 gr has decelerated to 2k fps at 200 yards, and is below 1800 fps at 300 yards.

At a MV of 2500 fps, 250 gr SAF has the same reach as 286 SAF at 2300 fps - about 150 yards.

Not a Barnes fan, but I believe 250 gr TSX has a BC in the same neighborhood as NAB 250.

I worked pretty hard at LD for 250 NAB, and was only able get an accurate load at just under 2500 fps. I get crazy good groups with Oryx 285, and very good with Hornady 286 and Speer 270. Trying to get a load for NAB up to 2600...wasn't worth it to me.

 

[Desperatezulu]

Norma 285grn Oryx bullets to see how they work in my rifle.

I think you'll be pleasantly surprised - I found them to be extremely accurate in my gun. And I've found Norma Oryx to be accurate and easy to load for in other cal/rifle combos too - must be something about the old school design. Who'd a thunk old bullet designs could work so well..

 

[Rick HOlbert]

Thanks for the reply. I'm looking forward to testing them. But then again isn't that part of the fun? The 285grn Oryx has gotten good reviews from several sources. That said, if I were to use my 9.3X62 for buff or feral cattle I'd opt for the Swift A-Frame.

 

[Jay T]

I loaded 286 gr A-Frames for my wife’s buffalo hunt. I used that same load on eland.

I load 270 gr Speer hot cor for everything smaller than that.

I thought you sold your wifes rifle ???

 

[WAB]

I thought you sold your wifes rifle ???

I had bought her a No 1 in 9.3x62, put a decelerator pad, mercury cylinder and Jard trigger on it. She decided she didn’t want a single shot so I bought a Rigby Highland Stalker in 9.3x62 for her hunt. It performed flawlessly. The good news is I believe that rifle is now mine as she appears to be one and done on buffalo. The bad news is that came at the cost of my custom M70 in 7x57 which she has now claimed!

 

[sgt_zim]

Ok, here is a ballistic calculator that I have on hand. The top one is a .308/ 165gr SST bullet at 2800 fps. The bottom one is a .270 130gr SST bullet, going 3200 fps.
You be the judge of which one shoots flatter, and hits harder.
And if you don’t think it’s possible to get to 3200 fps with a .270, it certainly is, and that’s not even pushing it to full throttle.
While the .308 165gr SST is right at max pressure.

Hawk

View attachment 456745

View attachment 456746

so...an unpublished load vs a published load. not an apples and oranges comparison.

fwiw, nosler is pretty typically the most aggressive on published data for speed and pressure, and even they don't show a 3200 fps load for a 130 gr 270.

2900 is doable for a 165 gr 308W (I get just south of 2900 with 168 gr Gold Dots out of my 308W), and 3K fps is possible out of a 30-06. Both of those are more energy than a 270 at 3200, and both of those are within published loads from Nosler.

all else being equal, heavier bullets penetrate better than lighter bullets

not really sure why you're trying to make 270 something that it isn't.

 

[Bob Nelson 35Whelen]

A 2.240 inch RUM case....... standard 20 inch barrels, but mine is 19 inches......... WSM actions......decent for a rat gun........

View attachment 456689

@michael458
Dang lad y'all must have some big rats over thar.
Ha ha ha ha ha ha
Bob

 

[C.W. Richter]

@Tanks
No out of my price range.
Scrub bulls are feral cattle that are meaner than a mother in law and very temperamental ( full of temperamental and half mental) to go with it. They are that mean they will charge just for the exersize.
Attach is a photo of a wonky horned scrubber
View attachment 453898
The person on the right is the father of the guide I will be hunting with and the designer of the 35 Mitchell Express, Ted

"...It's what's for dinner!" (American Beef Council) Now that's organic, free-ranging beef (minus the acute lead poisoning.)

 

[C.W. Richter]

I don't own one, but here are some max handloads from a few that do...looks similar to 35W capacity.

250 Nosler

​

IMR-4064​

​

56.0M​

​

2,582​

​

3,702​

​

26.0​

​

​

​

​

​

​

​

​

​

250 Swift

​

Norma-203B​

​

61.0M​

​

2,590​

​

3,725​

​

23.0​

​

​

​

​

​

​

​

​

​

250 Woodleigh

​

ADI AR-2208​

​

61.0M​

​

2,591​

​

3,728​

​

24.0​

 

[C.W. Richter]

Def. NOT my choice for DG. I did manage to get a 300 gr (Barnes Original SP) going 2,440 out of a 338-06 and it worked well on Eland (Barnes assisted me w/ load data as the bullets were so old, but recommended that shots be <150 yds!)

286 Nosler

​

IMR-4007​

​

61.0CM​

​

2,244​

​

3,199​

​

24.0​

​

​

​

​

​

​

​

​

​

286 Nosler

​

IMR-4895​

​

56.0CM​

​

2,279​

​

3,300​

​

24.0​

​

​

​

​

​

​

​

​

​

286 Nosler

​

Winchester 760​

​

63.0CM​

​

2,305​

​

3,375​

​

24.0​

 

[hawkeyesatx]

so...an unpublished load vs a published load. not an apples and oranges comparison.

fwiw, nosler is pretty typically the most aggressive on published data for speed and pressure, and even they don't show a 3200 fps load for a 130 gr 270.

2900 is doable for a 165 gr 308W (I get just south of 2900 with 168 gr Gold Dots out of my 308W), and 3K fps is possible out of a 30-06. Both of those are more energy than a 270 at 3200, and both of those are within published loads from Nosler.

all else being equal, heavier bullets penetrate better than lighter bullets

not really sure why you're trying to make 270 something that it isn't.

Nope….not unpublished.
And, do you have a .308 that has a 24 in barrel? Most don’t.
Here’s as close to apples to apples as I could get with one source.

Top, .308, 24 in barrel——

Bottom, .270, 24 in barrel——-

The Nosler info is over max, and probably a minimum dimension, target barrel for the .308, not to mention highly compressed.


Hawk

 

[C.W. Richter]

if comparing .308" to the 277, apples to apples would be the 3006 case, not a .308.

 

[Wyatt Smith]

I don’t call an 11,000 PSI difference apples to apples. Especially when you are the one who like full potential in a strong modern action.

 

[shootist~]

Ok, here is a ballistic calculator that I have on hand. The top one is a .308/ 165gr SST bullet at 2800 fps. The bottom one is a .270 130gr SST bullet, going 3200 fps.
You be the judge of which one shoots flatter, and hits harder.
And if you don’t think it’s possible to get to 3200 fps with a .270, it certainly is, and that’s not even pushing it to full throttle.
While the .308 165gr SST is right at max pressure.

Hawk

View attachment 456745

View attachment 456746

Foot pounds - by itself - is a poor indicator of killing power. Momentum, Sectional Density and the area of a bullet's cross section are all important (IMO).

Based on Chuck Hawks' "K Factor" (Killing Factor), calculated at 100 Yards, as well as the Taylor KO at Muzzle, the 165 gr .308 wins over a .277 130 gr by a considerable margin.

Using what I have in a spreadsheet - using my 308W's MV of 2,734 fps {Edit to Add} /w 165 gr A-Frame (actual MV @ the accuracy node) VS a 270 /w 130 gr @ 3050 fps: (I used the approximate Max average per Nosler's Reloading Data.

308W: K Factor @ 100 Yards = 42.8; Taylor KO = 19.8
270 W: K Factor @ 100 Yards = 33.9; Taylor KO = 15.7

Will a deer at 250 or 300 yards really care? Probably not.
Will a BWB or Zebra at 100 notice the difference? Good question, but I would choose the 308W (although possibly with a 180 gr instead of a 165.)

 

[rdog]

A 2.240 inch RUM case....... standard 20 inch barrels, but mine is 19 inches......... WSM actions......decent for a rat gun........

View attachment 456689

Thank you, that rifle is beautiful.

 

[dchum]

I just sold a 270 and got a Bergara 308 for a truck gun lol... already have two 30-06 as well...

150 grain sst out of either of those does everything my 270 wishes it could have done.

Hows the Sauer 9.3 I traded to you @hawkeyesatx? (We met in person and he gave me another 30-06 for my 9.3x62 ) lol.

What been you best load you have come up with @hawkeyesatx ? All I ever got to shoot was lame factory Hornady 9.3x62 ammo. I know the rifle is in better hands now.

 

[hawkeyesatx]

I just sold a 270 and got a Bergara 308 for a truck gun lol... already have two 30-06 as well...

150 grain sst out of either of those does everything my 270 wishes it could have done.

Hows the Sauer 9.3 I traded to you @hawkeyesatx? (We met in person and he gave me another 30-06 for my 9.3x62 ) lol.

What been you best load you have come up with @hawkeyesatx ? All I ever got to shoot was lame factory Hornady 9.3x62 ammo. I know the rifle is in better hands now.

Sauer 100 is still here.
I haven’t cooked any loads up yet, but plan to do so very soon. I have the components to roll my own 9.3x62 ammo, now.
Got some DG 286’s, some H414, and brass to get up to around 2550 fps. That should be good enough for anything here in the states.

Hawk

 

[Bob Nelson 35Whelen]

Def. NOT my choice for DG. I did manage to get a 300 gr (Barnes Original SP) going 2,440 out of a 338-06 and it worked well on Eland (Barnes assisted me w/ load data as the bullets were so old, but recommended that shots be <150 yds!)

286 Nosler

​

IMR-4007​

​

61.0CM​

​

2,244​

​

3,199​

​

24.0​

​

​

​

​

​

​

​

​

​

286 Nosler

​

IMR-4895​

​

56.0CM​

​

2,279​

​

3,300​

​

24.0​

​

​

​

​

​

​

​

​

​

286 Nosler

​

Winchester 760​

​

63.0CM​

​

2,305​

​

3,375​

​

24.0​

@C. W. Richter
What load were you using to get 2,440fps with the 300gn out of the 338-06. That's one hell ove a load.
I'm hoping to get 2,300fps with the 310gn Woodleigh and 2,500 with the 275gn.
Bob

 

[Bob Nelson 35Whelen]

Foot pounds - by itself - is a poor indicator of killing power. Momentum, Sectional Density and the area of a bullet's cross section are all important (IMO).

Based on Chuck Hawks' "K Factor" (Killing Factor), calculated at 100 Yards, as well as the Taylor KO at Muzzle, the 165 gr .308 wins over a .277 130 gr by a considerable margin.

Using what I have in a spreadsheet - using my 308W's MV of 2,734 fps {Edit to Add} /w 165 gr A-Frame (actual MV @ the accuracy node) VS a 270 /w 130 gr @ 3050 fps: (I used the approximate Max average per Nosler's Reloading Data.

308W: K Factor @ 100 Yards = 42.8; Taylor KO = 19.8
270 W: K Factor @ 100 Yards = 33.9; Taylor KO = 15.7

Will a deer at 250 or 300 yards really care? Probably not.
Will a BWB or Zebra at 100 notice the difference? Good question, but I would choose the 308W (although possibly with a 180 gr instead of a 165.)

@shootist~
@hawkeyesatx
My spreadsheet shows when I point the 308 at game with a 150gn or the 270 at game with the 130s game falls down dead if I do my part so I can't see a problem with either.
Paper balistics and mumbo jumbo figures mean jack shit. Use the right bullet in the right cartridge for the game hunted and no problems.

 

[264]

I run the 250 gr TSX out of my 93x62 They work great on buff. A bit hard and over kill on most other game. Even scrubbers even though they kill well.
The woodleigh 232's are a very versatile pill and are going to be my all round medium game pill when I run out of 190 gr ACP's These have proven to be very versatile and have worked well on game up to buff for me. Ive included pics of 9.3 pills from my 9.3x74 which has similar performance to the 9.3x62 Heres the pics cheers mick.
recovered 250gr TSX's, 2x buff one length ways on boar

boar

another bull

TSX from bull above

190 gr ACP dropped buff but didn't open, didn't hit any real solid bone?

buff 190 didn't open on.

232 hydro

250 tsx's from buff cows

one of the cows

left top 286 PPSN left bottom 270gr ACP's right 286 TSX's. and hydros