Thread: My 9.3x62...

Originally Posted by John Duxbury

Theres no way I am shooting The Bitch lying prone. No way...

I will bring down the 505 Gibbs........you will love the 9.3 after that

Originally Posted by stug

https://youtu.be/w2uacSv1Xiw?si=B9Jw77Mf1CMkbLzk

This is our original Big Bore shoot back in 2016. You can see Owen using the 9.3 in this video.

Need to come down for another one

Originally Posted by stug

https://youtu.be/w2uacSv1Xiw?si=B9Jw77Mf1CMkbLzk

This is our original Big Bore shoot back in 2016. You can see Owen using the 9.3 in this video.

Shooting in tee shirt must really reduce felt recoil...

Sent from my SM-A226B using Tapatalk

I have a 9.5 Mannlicher Shoenauer as well, would that count too?

Will get some of these Hammers in my next order

https://hammerbullets.com/product/36...gr-hammer-hht/

Nice & light to cut recoil down in my 9.3

My 9.3 began life as a X 57 but some fine chap had it rechambered to X 62 in Canada.

Its a pre-WW2 M98 action so has a bit of heft but is still fairly light . I shoot the 285 range of projectiles and dont have any issues other than not using it enough to actually warrant owning a 9.3 x 62. It is in a Parker-Hale wooden stock.

You have to be a little bit careful with thinking lighter bullets will reduce recoil, as the tendency often is to increase velocity at the same time.

Recoil is a function of bullet weight, and velocity, but the velocity is a squared multiplier - that is, if you double the weight you double the recoil, but if you double the velocity you increase recoil by 4x (2x2).

Of course, if the velocity stays constant then the lighter projectile will recoil less than the heavier.

The biggest improvement in bench shooting I have had was via plugs under earmuffs - or a can, but that might be a bit orrible on such a classic rifle.

Recoil is a function of momentum, which is mass x velocity. The momentum of the system is conserved. Before firing the rifle and projectile have zero momentum because the velocity is zero. The momentum of the rifle recoiling is equal to the momentum of the projectile moving down the barrel.
Momentum is a vector quantity so has a direction, so the rifles change in momentum is opposite to the projectiles change in momentum.

I’ve shot that rifle, Borrowed it from Owen at the SI big bore shoot, a few years back, bought a box of Ppu 285 gr in ChCh, shot same as Owens load out to 200, it’s a 9.3 is going shove pretty hard,
You can try cutting the load back a bit, moving to the 270 gr Speer 9.3 bullet, at the same speed, 2350 ish, will reduce recoil a bit,
Light bullets are hard to source, for the 9.3, but 250 gr TSX and Accubonds are about.
I too, would love to get a steady supply, of 232 gr Norma, but I’ve only ever seen one box in last ten years,

So here goes with some physics

8.5lb rifle = 3.855kg. 286gr = 0.0185325 kg 232gr = 0.015kg
Factory velocities from Norma ammo 286gr = 670m/s 2200fps 232gr = 731 m/s 2400fps

Momentum of rifle and projectile is conserved
Mass(rifle)xVelocity(rifle) + mass(projectile)xvelocity(projectile) = 0
286gr at 2200 fps
3.855 x Velocity(rifle) + 0.0185325 x 670 = 0
Velocity = 3.22m/s

232gr at 2400fps
3.855 x Velocity(rifle) + 0.015 x 731 = 0
Velocity = 2.844 m/s

So a lighter faster projectile does recoil less

Your right though, I would make the lighter bullet go faster I wouldnt be able to help myself. Then I'd still be whinging.