...at least around here.
This is a whiteboard in my shop with the builds for this year...so far. I don't know how that runty 375 got in there. Must have been when I wasn't looking, or a weak moment.

There is a certain amount of people to will always like big calibers.

I like that 550 Mag, 585AHR and 700AHR.
Always wanted a 550 Mag - might have to hit you up for one …

Definitely some Big ones on that list. I top out at the .458's. The past couple of years I just really gotten around to shooting them. But, I am having big fun with them.

Seems it! How does the 577 Trex stack up against the 585 AHR? I was always intrigued by the AHR that CCMDoc posted years ago.

The T-Rex is faster than the 585 AHR due to it's increased powder capacity. The 585 AHR, which is a necked down 600 Overkill, will hold around 150 to 160 grains of, say, H-4350, while the T-Rex will hold 175 to 200 grains of the same powder depending on whose case you use. I think Ed Plummer and I took the 585 AHR to 2,400 fps but it's been a long time and I don't remember the load, but I do know it was a 750 grain Woodleigh SN. I've done 2,560 fps ( 11,000 ft/lbs.) with the T-Rex in my case with a heavy compression of 175 grains of H-4350. My cases have thicker walls than the A-Square case so hold less powder. I can build the AHR on the CZ 550 action but the T-Rex case is too large for that so I use the GMA African Magnum only. The T-Rex has been very popular since I had brass made.

Just for info:

My 585 HE with 26" barrel is chronographed at 2403 fps with 750gr Weldcore bullet and 155 gr of RL-17. It is starting load.

Https://www.585he.cz

Jiri

Bravo, Wayne! Good to hear.

Big bores are just plain fun to own and shoot!

So I'm a guessin' GMA action is not Good Morning America?

Granite Mountain Arms
Phoenix, AZ

Thanks, Wayne. I didn't realize the GMA was structurally larger than the CZ. Is it overall dimension, or bolt body?

GMA makes several sizes of receivers but I use their largest for the real big cartridges. They call it the African Magnum. It has a .750" diameter bolt and the receiver is proportionally larger also. The mag box is the same length as the CZ 550, but you can get custom inside dimensions.

WE have seen a slump in big bores, and even more so in double rifles because the Africans have kept running prices up every year, Also because of Covid and getting trapped in 3RD world hospital, by a uncompromising gov. The number of African ranches leaving livestock and going on high fence hunting has created fierce competition, are just a few of the reasons we deal with today, then the problems within our own society add a serious decline in both hunting and big bore as well as all firearms. Air travel has gone sky high,Its a complicated scenario, and I've only touched on the surface.

High dollar hunting rifles and high dollar hunting has shot a hole in the good times of only a few years ago..Every double rifle I owned I sold within a year or two and doubled what I paid for it, same with English bolt rifles in big bores, sold to the average Joe btw, today it gets to be a rich mans game more and more, and that effects the gun market..Will it turn around?, I suppose when the African countries charge themselves out of work and get hungry, and when those RSA farmers get hungry and shed the greed, and the black African loses his big house in Tanzania etc, but damn they can live high on the hog, or in a hut in the village, and nothing bothers them, something the white man cannot do, so it may take awhile to settle. I sold my first buffalo hunts at about $2500 and a double rifle was a wall hanger at a couple of hundred,and not that long ago, maybe 40 years ago. Thats the way I see in short form...step #1 is be and act like a Repubican, take our country back with votes...

Seriously = that's some major horsepower in that list.

Townsend Whelan was wrong: its not accurate rifles that are interesting, its big rifles.

quote:

Originally posted by ldmay375:
Definitely some Big ones on that list. I top out at the .458's. The past couple of years I just really gotten around to shooting them. But, I am having big fun with them.

Makes me feel like my 500 Jeffery is a medium bore ...

quote:

Originally posted by Jiri:
Just for info:

My 585 HE with 26" barrel is chronographed at 2403 fps with 750gr Weldcore bullet and 155 gr of RL-17. It is starting load.

Https://www.585he.cz

Jiri

Jiri,
We saw the same bullet performance from Rob's 585 Nyati on an eland

And, from your waterjug videos, you saw the same results on the wooden platform holding the jugs that we see with our heavies (550 and up)... destructive pressure in all directions

I'm a big dude and can handle recoil, but my 458 WM is my limit. Maybe I just don't shoot the big ones enough

Never have tried a double.

Depends on weight.
I have Marlin guide gun and full house buffalo bore loads that will pop you just as hard as my Browning Safari 458WM.
Add enough weight and you can shoot any of them.
Now have a big double; double on you and you think "What just happened"...
Just need a Porter to care them for you.

EZ

quote:

Originally posted by Austin Hunter:
I'm a big dude and can handle recoil, but my 458 WM is my limit. Maybe I just don't shoot the big ones enough

Never have tried a double.

Wayne you doing only customs now or modifications as well? Like my 2 you did

Just customs now. Matrix Gunsmithing is doing the upgrades that I used to do on the CZ's.

I'm really stunned by the asking prices of Ruger RSM's and CZ 550's in .416 Rigby. I've only saw one RSM at what I consider a reasonable price lately which Cabela's sold last week for $1800.00. Most of the asking prices for these rifles have been running in the $2500.00-$3500.00 range. I'm wondering at what point the market will correct itself of these rifles.

quote:

Originally posted by Tpr.1919:
I'm really stunned by the asking prices of Ruger RSM's and CZ 550's in .416 Rigby. I've only saw one RSM at what I consider a reasonable price lately which Cabela's sold last week for $1800.00. Most of the asking prices for these rifles have been running in the $2500.00-$3500.00 range. I'm wondering at what point the market will correct itself of these rifles.

Wouldnt a market correction require other options - IE substitute products? I mean if someone wants to buy a classically styled 416 Rigby, what alternatives are there?

Good point. It would be nice if someone you start production of something like the 550 or RSM in .416.

Hard for me to imagine a better large bore African stopping rifle than a CZ 550 in 458 Lott.
Mine will hold 5 down in the magazine.With one in the chamber, a lot of firepower.
With a TSX 450 and push them to 2400 FPS you can extend the range a bit as well.

Ive met a ton of big bore shooters in my career and a few of them could really shoot well..

What is the .606 Mammoth that’s at the top of your status board?

quote:

Ive met a ton of big bore shooters in my career and a few of them could really shoot well..

I bet most of them thought they could though!

I thought I was a "good shot" rifle wise until I went to the range with a decorated Marine Recon Sniper (3 tours in Vietnam). He told me I was a "decent shot" which I considered high praise from him. He turned out to be my best friend for the 10 years I lived in Montana.