CZ550 rebarrel options for .40+

[treeman]

The rifle will still be able to safely shoot 458 Lott and 458 Win Mag, although some long-range accuracy may be lost due to increased bullet jump with the shorter cases.

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We have debated this before, but let me ask any way, do you still believe jump affects accuracy?

[treeman]

I will open a thread for this so as not to derailing OP, but a short reply would perhaps interest OP and his decision.
https://www.gunsite.co.za/forums/sho...70#post1411970

[414gates]

416 Rigby.

The 375 H&H is close enough in performance to the 404 Jeffery to consider something bigger.

The 458 range is common enough, but you are putting in great effort and expense, why settle only for what everyone else can afford ?

An extra round capacity for a dangerous game rifle is not as important as people imagine, because if you haven't concluded the business in three rounds, it won't matter anyway.

The 416 Rigby is the Emperor of dangerous game cartridges. It was never as popular as the 404 Jeffery, perhaps because it was much more rare and expensive, not because of it's performance. It starts performance at the 404 Jeffery power level, and increases to the limit of your recoil tolerance.

There is no need to base your cartridge selection on commonly available brass. Buy 100 new cases, and with proper care, you will never need more.

Ruger made their 416, claiming to equal Rigby performace. They advertised a 400 grain bullet at 2400 fps, which is itself a dubious claim, but that is the bottom end of Rigby capability. It's a great little rifle, it can easily equal 404 Jeffery ballistics, shoots like a dream, but it cannot cast any shade on a Rigby. In contrast, the Rigby is just starting to open it's stride with 400 grains at 2400 fps.

I would suggest that you adjust the weight of both the rifles to heavier, as you want two rifles that feel the same, and a 416 Rigby in a 375 H&H weight is going to be brutal.

The 416 Rigby can be loaded to the performance level of the 500 grainers in 458, using 450 grain bullets, and gives better penetration.

[SASwart]

I would also suggest a 458 Exp, but I am biased as having one. As mentioned you can easily use Lott/Win Mag when in a pinch, you can play more with loads due to higher case capacity, which also means less pressure and it does not have the kick that the 458 Lott is known to have.

But, me personally a 450 Rigby / 404 Jeffery is still something on the list. But for what you want the rifle for (case capacity/stopping etc.) a 458 Lott/458 Express would be ideal.

[FNBROWNING]

Shooting 38 in a 357 revolver gums up the chamber eventually. This may have been a factor with the lead bullets we used. With the Lott VS 458 mag depending on who you read, this is or is not an issue. We know that the 458 win mag issues were resolved decades ago. Undersized bullets and powder clumping. The standard 458 win mag is a beast.

[Gundane]

Thanks for all the responses so far, it has made for some interesting reading. With regards to the 458 Express: I’m sure the gunsmith in the UK could get a reamer, but I’m not sure how he would regulate the sights without perhaps sourcing reloading components for the 458 Express. I suppose he could shoot Lott ammo to do it. The 404J interests me because the 450 gn bullet has really high sectional density and at 1150-1200 FPS should do all the I require. I haven’t considered the 416 Rigby because if I am going to sacrifice magazine capacity by one round then I would want if to be for the 450 Rigby.

[Gundane]

Sorry meant 2150- 2200 FPS.

[414gates]

...1150-1200 FPS

You mean 2150 - 2200 ?

... if I am going to sacrifice magazine capacity by one round then I would want if to be for the 450 Rigby.

136 grains of case capacity, compared to 111 grains case capacity of the 458 Express, or 5 grains less than the 460 Weatherby.

Excellent performance capability and load flexibility.

Now you can run 600 grainers at your required 2100 fps.

[RakerX16]

Well I love my 416 Ruger Alaskan. With factory ammo, I have chronied 2400f/s with 400gr bullets but reload my own rounds to around 2200f/s. Easy shooting and recoil is manageable for several follow up shots and can run 20-30 rounds without my shoulder moaning. The only down side is the availability of standard factory ammo so I reload with a range of bullets and grain weights. 458 factory ammo is easier to come by and is more common and popular and thus a bit cheaper than the other 40's. If you really want something to hammer the "target" and shoulder Weatherby 460. Personally, I don't think you can go far wrong with any of the following 404, 416, or 458 as all can chuck 400 gr at >2000 f/s which is plenty for dangerous game.

[Roguemeister]

You mean 2150 - 2200 ?



136 grains of case capacity, compared to 111 grains case capacity of the 458 Express, or 5 grains less than the 460 Weatherby.

Excellent performance capability and load flexibility.

Now you can run 600 grainers at your required 2100 fps.

This... Why throw 500 grainers when you can throw 600 grainers

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