Does anybody have some 450 Rigby load data? Previous posts always seem to lump the 450 Dakota and 460 Weatherby into the discussion, but no direct 450 Rigby info. Lets stick to the Rigby and see what we come up with. My load 105 gr. IMR4350, 500 gr. Hornady. 2235 fps.

Dave

Well, which Hornady bullet exactly?

I calculated it with the QuickLoad and I would say it is the upper limit for it...

Drop me an email and I send You the calculations if You like...

Klaus

nopride2:

I didn't want to clutter up your topic since you said you didn't want 450 Dakota load data. However, I have the Dakota and have done a bit of chronographing with it with different powders. If you want the info, pm me.

since the case capacity is very close, these are frequently mixed together.

how long is your barrel and which bullet?
2300 is very easy in a rigby/dakota/weatherby

Accurate – 2700

Bullet weight: 500 grains.

Start load: 89.0 grains (2100 – 2175 Ft/p/sec)

Maximum load: 97.0 grains (2300 – 2400 Ft/p/sec) LD ca 104%

Bullet weight: 550 grains.

Start load: 82.0 grains (1900 – 1975 Ft/p/sec)

Maximum load: 90.5rains (2100 – 2200Ft/p/sec) LD ca


And

Accurate – 4350

Bullet weight: 500 grains.

Start load: 90.0 grains (2100 – 2175 Ft/p/sec)

Maximum load: 97.5 grains (2300 – 2400 Ft/p/sec) LD ca 108%

Bullet weight: 550 grains.

Start load: 82.0 grains (1900 – 1975 Ft/p/sec)

Maximum load: 91.0 grains (2100 – 2200 Ft/p/sec) LD ca 106%.

PM Karl (Karl Stumpfe), a Namibian PH. He hunts with a 450 Rigby on a Vektor action Mauser. He'll have load info, but the powders may not be available here.

500grn Barnes solid.
Winchester large rifle magnum primer
108grns of Norma URP
V= 2500fps out of a CZ rifle

This is (just) under the max load listed by Norma - they list 109grns behind a 500grn mono - but also list it as doing 2500fps...

With S371 I get the same velocity but the primer is certainly more flattened than with URP. And I don't have much of it left.

S365 gives 2400fps before I can see pressure signs but is very accurate and nice to shoot load with the Swift A frames.

quote:

Originally posted by Ganyana:
500grn Barnes solid.
Winchester large rifle magnum primer
108grns of Norma URP
V= 2500fps out of a CZ rifle

This is (just) under the max load listed by Norma - they list 109grns behind a 500grn mono - but also list it as doing 2500fps...

With S371 I get the same velocity but the primer is certainly more flattened than with URP. And I don't have much of it left.

S365 gives 2400fps before I can see pressure signs but is very accurate and nice to shoot load with the Swift A frames.

Hey Ganyana - stop a bit... Thought that you didnt like +375" caliber rifles and high velocity... Something you would like to tell us..?

I would be really, really careful with Ganyana's data. That sounds like a very hot load to me.

Dave Norma list 2500 fps with the 500grn mono and 2500fps with the 450grn Swift A frame.

I haven't tried to get 2500fps with a 500grn swift - with somchem powders you get sticky extraction long before you get there.

However, the 450 rigby has a maximum working pressure of over 400Mpa compared to 280Mpa for the .416 rigby.

Also remember the CZ's have 25" barrels - which is excessive but with a medium burning rate powder like URP it shouldn't make much difference. A slower burning powder like MRP should, in theory, give more velocity at lower pressure in a long barrel- but I haven't tried it. URP is a very high energy powder like the vhitavour 550 series.

Buffalo...just because I don't like carrying excesively heavy rifles when hunting doesn't mean I don't own any. I am down to 36 rifles having parted with my 4 and 6 bores..and a couple of the .450's..Still have an 8 bore and a .500N. I thought the .450 Rigby looked like an interesting option being the only 'modern' bolt action round since the 450 Watts and .458 win came along. Many of the Kruger park rangers have gone over to the .450 Rigby.

Personnally, I think mine is soon to be ex me and I have my eye on a CZ in .500 Jeffery

quote:

Originally posted by Ganyana:
Buffalo...just because I don't like carrying excesively heavy rifles when hunting doesn't mean I don't own any. I am down to 36 rifles having parted with my 4 and 6 bores..and a couple of the .450's..Still have an 8 bore and a .500N. I thought the .450 Rigby looked like an interesting option being the only 'modern' bolt action round since the 450 Watts and .458 win came along. Many of the Kruger park rangers have gone over to the .450 Rigby.

Personnally, I think mine is soon to be ex me and I have my eye on a CZ in .500 Jeffery

Agree with you Ganyana. Myself I have quite a few big bore rifles, the biggest beeing a heavy 577 Tyrannosaur. I dont have much interest in taking it elehunting any more, its to heavy and too much recoil to be able to take a shot in some akward shooting positions..
I am having a 500 Acc Rel build these days. 20 or 21" barrel, std length action, weight under 8 Ibs (no scope - just a peepsight) and 500 Jeff ballistics (570 grs monosolid at 2300 fps) - I think that will be my new favorite..

Took a 458 Acc Rel rifle with me to Zim last Oct and shot 3 ellies. It has Lott performance (2300 fps with 500 grs Barnes banded solids) - worked perfect and rifle is around 7,7 Ibs and short barrel. But - I just want to try a 500 next time..

Take care
Ulrik

Answering above questions. Barrel length 23 inches. Bullet, 500 gr. Hornady rn interlock.

Dave

I used 96.5 gr. H-4895 in the Rigby with the 480 gr Hornady DG FMJ and SP bullets for Zimbabwe in 12/08. I can't tell you the velocity due to computer crash and have not chrono or shot it since. I guess I should shoot it sum again, but have been "frying other fish" to much I guess. Any 450 Dakota data should be just fine with the ususal "work up to it" statement. Very close to the same "cat" with a different label.