I have two mercury recoil reducers that were installed by the CZ Custom Shop in my 500 Jeffery when I bought it from them. The balance is perfect, no sloshing that I can hear and over 500 full power rounds through it with no issues.
Wayne at AHR used to make custom LH rifles based on the CZ 500 action that were reasonable in price and great in quality. Not sure if he's still doing that.
I love Winchester Model 70s I have a classic in 416 Rem Mag (stainless/synthetic) but I like my CZ 550 in 500 Jeffery a lot better. Action is so solid, like a bank vault.
I'm pretty much set with handguns and hunting rifles and shotguns, but for self defense and of course the Zombie Apocalypse thinking about buying two Daniels M4s (one for each son), a 50 Barrett for myself and a Zabala SxS 10 gauge (have a gunsmith shorten the barrels to 22".
I think I'm done buying rifles. I have BDLs in 270, 7mm Rem Mag, Mark V in 270 WB, Rem XCR II in 375 WB, CZ 550 in 500 Jeffery and of course a Marlin 336C in 30-30 :)
45 Super is an awesome caliber for a woods gun. I shoot Buffalo Bore 255g hardcast at 1100 fps out of my Springfield V16 Longslide which was designed for the 45 Super. Bought it new over 20 years ago :) Had the Springfield Custom Shop tune the trigger and do the front and back straps
I have a Rem XCR II in 375 Weatherby (originally 375 H&H). It's a good rifle. The finish on mine is TriNyte Here's a blurb. Mine weighs 7 1/2 lbs with Leupold Scope and Talley steel QR rings
From Remington's site;
The Model 700 XCR II� is truly built for extreme conditions with our...
With scope unloaded it weighs 12 lbs. My handload is either a Swift 570g A-Frame or 570g TSX at 2300 fps recoil is 88.12 ft lbs recoil velocity is 21.74 fps. Recoil is sporty but it's still fun to shoot. I have loaded the TSX up to 2510 fps but at that speed the fun index went to zero...
Is this a Ryan Breeding custom rifle? Is it built on a GMA Magnum Mauser Action? If so I'd have Ryan put a 24" 505 Gibbs barrel on it. Then you'd have something!
My .375 caliber 300g A-Frame that penetrated a 9' brown bear diagonally starting at the right shoulder still weighs 299.5 grains. Your friend got a 10 1/2 foot bear I'm jealous what a monster!
I don't know what type of single stage trigger Wayne put in my CZ550 but it's perfect. Breaks at a crisp 2 1/2 lbs Not for the uninitiated with my 500 Jeffery
Good luck! I'm sure it will come out great. CZ 550s are great rifles. Here's my CZ 550 in 500 Jeffery. Wayne at AHR did the upgrades (3 pos M70 type safety, straighten and fill bolt, and single stage match trigger). It came with the barrel band an NECG front sight. Kevin Weaver worked on...
44 Magnum is more effective for sure, but my Springfield V16 in 45 Super is easy to carry, shoot and a Buffalo Bore 255g hardcast at 1100 fps (from my 6" barrel) is nothing to sneeze at. I bought it from the Springfield Custom Shop a long time ago. I recently sent it back to have the front and...
My CZ 550 in 500 jeffery weighs 12 lbs with Talley steel QR rings and a Leupold 1.5-5x scope unloaded no sling. I wouldn't want it any lighter. It came from the CZ Custom Shop with 2 mercury recoil reducers in it.
We (my sons and I) have both M70s and a CZ 550. I think the M70 is preferable in 375 H&H being lighter and a slimmer stock. I think the CZ 550 in 416 Rigby, 450 Rigby and 500 Jeffery is just right. The action is as solid as a bank vault. The action might need a bit of smoothing but a little...
Wouldn't it be great if they invested in new CNC machinery and put a CZ 550 in big bore calibers with the 3 pos M70 type safety and single stage match trigger Wayne put on for me at AHR. I think at $1500 they couldn't keep them on the shelves.
That's just because you're running the 500 jeffery at the original 1920 pressure levels. With a strong action and new brass you can easily attain 2500 fps with a 570g bullet with the 500 Jeffery.
If I was going for a caliber like a 458 Lott I would look for a good South Carolina Model 70 in 458 Win Mag used and have it rechambered. You don't need a massive action for that cartridge.
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