The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Big Bores Finally found an A-Square 577 Tyrannosaur - "The Mighty T-REX" - ** 2/2 UPDATE **Go | New | Find | Notify | Tools | Reply | |
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Hello Clayman, Thanks for the reply. The web-site was Hyatt Guns - https://www.hyattgunstore.com/...ition-t-rex-577.html - They were great to deal with.
I'm not sure when / where it was made, but I know the 577 T-Rex cartridge was invented my Art Alphin in 1993 and 2 rifles were ordered then. A-Square was in several locations over their many years in business, Chamberlain, South Dakota, Bedford, Kentucky, Butte, Montana, and Glenrock, WY. The barrel is marked with the caliber ".577 Tyrannosaur" on the left side, and "A-Square / Made in U.S.A" on the right side. Left side of the action is marked "HANNIBAL MODEL" and the right side has the original Winchester serial number "W2515" which would indicate the original M1917 rifle was made in August 1917, first year production. No other marking are present that would indicate where it was made. However, there is a stamp on the bottom of the action "MC5" that is not a 1917 production stamp. I've been told that A-Square only made about a dozen Hannibal models in 577 T-Rex caliber. Perhaps the "MC5" is a stamp by A-Square and is some kind of production code indicating this is the 5th one made. ? ? ? " .... you never pay too much for something, you only buy it too early .... " How to Hunt Wisconsin Whitetail Deer with a Cannon How to Hunt Feral Cats with a Mortar | |||
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Interesting! I suppose it's hard to get hold of any kind of serial number records, as the company is now defunct (right?). Fortunately, the aftermarket has you covered with brass, bullets, and load data. I was always attracted to the 500 A2, but as far as I know, they never made a rifle in that caliber in left hand. Their Caesar (I think) rifle was limited to H&H length cartridges if I recall correctly. _____________________________________________________ No safe queens! | |||
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Hello Clayman, Thanks for the reply. I had an opportunity to speak with Art Alphin yesterday, and yes, all the Factory records were lost by one of the subsequent owners of the A-Square Company. Art told me that all the actions were re-heat-treated and magnaflux tested before use and that the the "MC5" stamped on the bottom of my rifle's receiver was a "re-heat-treat" number. He didn't recall exactly how many rifles were built in 577 T-Rex caliber, but indicated it was a low number. He also told me the serial numbers on all the rifles were the original numbers of the rifle's manufacturer, whether preserved or re-stamped. " .... you never pay too much for something, you only buy it too early .... " How to Hunt Wisconsin Whitetail Deer with a Cannon How to Hunt Feral Cats with a Mortar | |||
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I think that rifle is perfect. The stock is shaped right as far as I am concerned for straight back recoil. I shoot a 577NE single shot and have killed 4 buffalo with it. I would like to add some comments from my experience: My loads are are probably very mild compared to yours. 700 grain bullet at 1900 fps. The 700 grain Peregrine Bush Master at 1900fps and the Cutting Edge Bullet BBW #13 Solid and Raptor ( or probably any bullet ) kill buffalo like they were struck by lightening with a decent shoulder shot. A 700 grain at 2100fps would be the sweet spot, I think, for cape buffalo. Very manageable recoil in the field. (Still a bitch at the range.) I also like VV 550 powder. Ed Hubel got me using it. Very nice pressure curve. Recoil: I weight the forend with brass secured with epoxy or lead/epoxy Mix. First router or dig out the cavity over sized and do one layer of epoxy/FG cloth. This strengthens the forend . Then put the weight in. About 1/2 pound or less is perfect for holding the muzzle steady and reducing muzzle flip. My rifle weighs 13 lbs. with the 577 barrel and 12 lbs with the 50-110 barrel. I like the Limbsaver recoil pad. Bullets for Buffalo: I like the Cutting Edge Solid and Raptors. I used them on buffalo in 577, .500, and .375. The Peregrine Raptor was "the cat's meow" too. The CEB Raptors are devastating on Buffalo. With .585 Raptor and a good shoulder shot, don't surprised if they are DRT. ( You will spoil the tracker!) I have used hard cast (22BHN) .585 bullets at 1800 on 3 buffalo and they work perfectly like a solid. Enjoy you rifle. It is awesome! IHMSA BC Provincial Champion and Perfect 40 Score, Unlimited Category, AAA Class. | |||
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Hello Brian CAnada. Yes, the A-Square "Coil-Chek" stock design really works to reduce felt recoil. Although I haven't fired this rifle yet, I'm confident it will perform as advertised, "having less felt recoil than a Weatherby 460 Mag." I'll soon find out. Temperature should be in the 40's this weekend. FYI, I have 6 rifles in 416 Rigby cal. They are pictured below in "shooting pleasure" order. One of them is an A-Square. All six weigh about the same. The A-Square is the only one that I can shoot all day long with Factory ammo, and really enjoy it. One is John Buhmiller's Brevex Mauser that is equally fun to shoot all day long, but it has a muzzle brake so its not a fair comparison. Three others are so-so OK to shoot, but you want to quit after a dozen shots. And the worst one is an Atkinson Rigby Style Mauser that kicks the crap out of you, each and every time you pull the trigger. If it didn't have such a unique History, I'd have gotten rid of it long ago. I know a lot of people criticize the A-Square stocks calling them Coil-"Chunk" instead of Coil-"Chek", and "ugly", but I look at it this way, the animals that are killed, don't care what the rifle looks like. The rifles work as intended. As an example; Vehicles used on Safari are mostly Land Rovers, which are also not very stylish or pretty, but they work as intended. They work a lot better in the Bush than a Corvette.  " .... you never pay too much for something, you only buy it too early .... " How to Hunt Wisconsin Whitetail Deer with a Cannon How to Hunt Feral Cats with a Mortar | |||
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Well, with the drop on that Atkinson rifle's butt stock, it's no surprise it punches you! Looks like it'd be more fitting on a shotgun than a DG rifle. _____________________________________________________ No safe queens! | |||
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Clayman, Good eye. That old Atkinson was from the "Handle fast like a shot gun" era. IHMSA BC Provincial Champion and Perfect 40 Score, Unlimited Category, AAA Class. | |||
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Glad you like that ol Asquare 416 rigby..loved that gun Congrats on your new 577... DRSS Member | |||
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Hello Clayman, Thanks for the reply. The difference in drop between the rifles really isn't that great. All are within 1/2" of each other as shown below.  .
Hello 505ED Thanks for the reply. Yes, the A-Square 416 Rigby is one of my favorites. I think I remember you sending me a video of your hunt with the 416. Perhaps you could send it again as I lost it a couple of years back in a computer upgrade. **UPDATE** Temperature was about 39 above today, up from 26 below zero on thursday. That's about a 65 degree swing in less than 72 hours. So, I finally got got out to the range to test fire the T-Rex. However, nothing spectacular happened because I'm working up a load and I only got up to about 577 NE levels at 2050 fps velocity. That's only 94 ft/lbs of recoil energy so it was at a "fun load" level. Although my shooting buddy did say my neck seemed to stretch quit a bit. Next outing we'll work up higher velocities. " .... you never pay too much for something, you only buy it too early .... " How to Hunt Wisconsin Whitetail Deer with a Cannon How to Hunt Feral Cats with a Mortar | |||
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buckstix, Jolly good show Old Chap.  Got some video of that "neck stretching" for review? Hopefully it was merely an illusion for your shooting buddy, more like shoulder being gently shoved backward away from neck.  Rip ... | |||
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Hello RIP. No video, ..... yet. I never thought the day would come when I'd use the words "only" and "94 ft/lbs of recoil energy" in the same sentence. My buddy said he thought my head might snap-off at the adam's apple. When I offered, ..... he didn't want to shoot it. " .... you never pay too much for something, you only buy it too early .... " How to Hunt Wisconsin Whitetail Deer with a Cannon How to Hunt Feral Cats with a Mortar | |||
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The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Big Bores Finally found an A-Square 577 Tyrannosaur - "The Mighty T-REX" - ** 2/2 UPDATE **
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