iam looking for a big bore repeater over 458 since i have a ruger nr 1 in in 450 ne.

or under 458 like a 416.

i have thougt about 416 rigby, weatherby and 404.

in the class above 458 i have thought about 500 or 505.

what should i choose, what action, how long barrel, scope or no scope. it will be a stopper rifle for tracking and close encounters.

Mr. Rigby
You need to nix that Ruger and find yourself a .450 Rimless Magnum by RIGBY!
Back when Sir Paul "Bwana" Roberts was at the helm base price for ZKK-actioned (highly modified) 4+1 modelo was 6000GDP. Wish I was taking in then what I make now and I would have ordered one myself. I would even spring extra $ for that lovely H&H-type qd mount!

i likr the single shot very much and i was thinking about a cz 602 receiver with a good barrel in to make a economy version of it .

personally id go with a 505 i am currently having one built by ryan breeding

www.rbbigbores.com it will have a 22" barrel a granite mt arms action and a synthetic stock.

the load will push a 600 grain solid at 2500fps for some 8000+fpe

alright, i thought about that since norma is loading it and that makes a huge difference in getting ammo or loading data for it, plus they also makes brass for it aswell. and they have the data on their web page. i wonder what a guy who has a 6,5x55 looks like in his face if he tryes it. i also found a site and article about Jack Lott trying one of them and it was fun reading.

700 nitro if you want to discuss it further send a pm

700 nitro
Why did you go with the 505? I have been looking at the 50cal DGRs and the 500 A-square seams to be thee way to go. Cheaper, easy to find brass, better brass, and Better balistics.
Is the 505 just a tradition thing or am I missing somthing.
Dr B

Whether or not an A-Square is more practical depends on a couple of factors. In a conversion, it is easier to build an A-Square than get a 505 set up right. OTOH, that is a moot point if you're buying a magnum action produced for the 505. They all cost the same no matter what caliber you order.

As to bullets and brass, there are certainly more 510 bullets that 505 but there is a surprisingly large variety of 505 bullets none the less. High quality brass is readily available, too. What you can't do is long-throat a 505 to shoot 50 BMG bullets.

The ballistics of a 505 are under the 510 Wells or A-Square because the original presures are so low. Loaded to the same working pressure, a 505 Gibbs will smoke a 500 A-Square; just like a 416 Rigby can smoke a 416 Remington if you so choose.

So at the end of the day the A-Square will be a little easier for an action conversion but no advantage with a store-bought custom action, slight advatage with bullets and shoots surplus 50 BMG pills too.

The 505 has panache (for those who care about such things) the A-Square can never muster, more muzzle energy if you handload and want the horsepower and has better name recognition and resale value, all else equal.

I didn't know that you could load the 505 to that high of preasure due to brass design. What kind of velocity are you talking about. I would like to get over 2400 fps with a 570gr-600gr bullet.
Dr B

Jamison's 505 brass uses the same web design as the 408 CheyTac (the 505 necked to .408 and run up to Wby pressures). Horneber is pretty stout, too but not as heavy as Jamison. The issue is what action to use. That much bolt thrust is eating into the safety margin on a CZ magnum but not such a problem on some others. Also, the 505 is just too wide to do a decent staggered feed on a CZ. If you want to start with a CZ, I'd recommend the A-Square.

Frankly, I don 't know the upper limit because I'm pretty happy with 2350 or so. I got up to 2440 with no sign of pressure whatso ever. Quickload suggests the limit with 525 gr bullets is over 2600.

tiggertate
I am probly going to use the CZ Action becuse of cost. My gun smith Kevin Weaver built a 460 wby on a 416 Rigbu CZ, he said it feed perfect without any modifications. Is their another reliable action that will handle a 505 or 500 a-square that is reasonably priced? I'm not intrested in a Mark V action.

Dr B

I don't think so. From there you have to go to the customs. I built a 505 on a CZ with a single stack system like Weatherby (only 2 down)but if I build another, I'll wait for enough money to go with another. Probably a Waffenfabrik Hein mauser.

If you want a CZ, I'd stick with a 500 A-Square or 550 Magnum. 700 gr @ 2400 is reachable if you like pain; 600 @ 2400 is a low pressure load for the 550. Same case as the 500 A-Square, just a bigger hole.

I think I want to shoot the 570gr TSX at 2400 it should be fairly low preassure, and a lighter recoil. with the TSX you are good to go for every thing including elephants.
Dr B

Great bullet, no doubt. I'm shooting the 525 gr TSX in my 505 Gibbs. It looks like it will have stellar accuracy and at 2350, pretty easy to shoot.

700

How much is that Ryan Breeding rifle going to run you. Looks like he does awesome work. Would love to get my hands on one of those rifles.

How about a 70-150? Or a 590 Super Sniser?
http://p223.ezboard.com/fbritishmilitariaforumsfrm4.sho...ge?topicID=390.topic