PC, Mike, Rob, others with a 585....
As I've been talking about, I have a partial project for a 585 nyati. MY thoughts on this, IMHO is that the 585 should match 577 nitros ballistics. Part of my thoughts on this is that I hate muzzle brakes (noise, blast, etc).
I've been shooting a 577 a little now and then. We've taken the time to get bertram brass to actually make the 2050+ with 750 grains bullets. More than a quater of an once of RL15 or Benchmark.

All that being said, I was wondering if you lot would mind trying this. Load your 585's as hot as you want, and then load them DOWN to 2050, and then 1850. I am not recoil shy, but, man, the 577s kick like Thor's goats!!!

I calculate that in the 585, with 750 gr bullets, in a 12# rifle (no brake)
2400fps 157 ft/lbs
2050fps 114 ft/lbs
1850fps 94ft/lbs.

So, my "idea/guess/wish" is for you guys to tell me "with the brake, it feels like a 375" or some other such LIE (grin)

any takers?
Jeffe

Jeffeosso- To be honest the 585 NYATI except at full tilt isn't all that bad. Mine has a brake on it and I have no interest in taking it off. I like Brakes. There is nothing wrong with loading down to 577 NE levels and with 650 gr bullets it's not a problem. The combo of good gun weight 13lbs, a triole X pad and a good brake really seem to tame the beast. I think the 600 Overkill will be just as controlable at 600NE velocities, but at 2400fps I have my doubts.-Rob

2320 fps with 750 grains and a brake is like a low speed car accident (<30 mph).

Jeffo,

I have only shot the 650's to date loaded infront of 150 grains of AR2209 (equivalent to 145 grains of IMR4350). With my 13 pound rifle, break and three mercury reducers it's fine, it is more comfortable to shoot than my .416 Rigby. My mate has shot a few 750's loaded with 155 grains of AR2209 and staes recoil is noticeably heavier but not that bad. He would rather shoot with the .585 than his stock standard CZ 416 Rigby.

The break with muffs on is fine, and I will not remove it as I feel it lowers stress on your scope/stock.

I love my .585, it's my favourite gun.

Dang it...
Ya'll are making me feel like a wussy!!!

My 416 rem is a joy to shoot... it's 10.5 or 10.75, with a tube, and it kicks 75% of a ccz550 416 stock. Both loaded to 2400.

I can't make up my mind on a 585 vs a 500 x or 470 mbogo. I am leaning towards the 470... but, I already have a "40" calibre in the 416.

Oh well, I'll finish my 376 and see how it goes. I am just in love with that one, this day.

On brakes, I am sure I've said this: I spent my like protecting my hearing, as I grew up painting and sandblasting with my dad. I always wore ear protection, even to the point of pulling butts of cigerettes and stuffing them in my ears.

Jeffe

jeffeosso,

If you have a 577, I would not build a 585. Instead, I would just take the 577 hunting.

If you don't have a 577, then a 585 nyati will duplicate 577 ballistics, or exceed them, for about $12,000 less than the cheapest 577.

In my opinion, the most practical big bore is a 500 A-Square built on a CZ550. Open the rails about 1/64", contour the ramp a teeny tiny bit, open the case mouth on some Norma 460 Wby brass, load ammo and go to the range. It couldn't be simpler.

And you can shoot 440 grain bullets out of a 500 A-Square that were intended for a 50-110, just to be sure that they will open up.

500grains..
I have been shooting my friends 577. I want a "greatbigOH" and I am thinking about a 585. But, in reality, I would shoot a 500x or 47x much more.
I've got a good enfield, already slicked up, but not opened up. So i can build just about anything I want on it. Just can't make up my mind.

man, I need to get back on my 376.

Jeffe

Hey Jeffeso !
You should wait until brass,dies and the rifle itself is ready in .620 Overkill !(figure 2400 fps and Fritz's 920 gr.custom bullets,,,oooouuccchh !!)

I certainly want one,,instead of the .585 Nyati!