What would be the top (3) actions to use to build a .577 Tyrannosaur? Also what would be an ideal barrel length for this round. This would be a carry rifle for dangerous game.
Thanks,
recoilpad

I am waiting to hear more on this one... I doubt i'll ever have one, but it would be a cool thing to know about

jeffe

What did Saeed build that monster of his on?

Saeed's was the A-square rifle.

Barrel length won't effect power since you will never use it much at maximum..for hunting anyway.
For interests sake it will go over 2600fps with 750gn.
Maybe close to 12,000ftlbs with 26" barrel.

I actually think the 650gn woodleighs would be a good trio if you wanted to be different and keep things a bit lighter.

They make a 650gn regular softpoint, a very soft jacketed BP bullet and a new 650gn FMJ.
2000-2400fps to suit.

Karl.

P-14 Enfield will get you there real quick. Cost depends on how much millwork you want to do. The receiver/magazine box of the A-Square rifle is simplicity itself. If you want to do it real cheap, all you need is an endmill to remove the metal from underneath the feedrails and TIG on the plates to form the magazine box. Leave the ears and peep sight for a "combat" tough set-up. Won't be the pimp'in-est looking rifle, but it will get the job done. Oh, you don't have to load the thing up to nuke levels, just to where you feel comfortable.



Email me offline for pics and details.



fsrfr@uaf.edu

Why not make a 600 OK, It is a much better case design.
And will have as much power if you want. And easier to work
over actions to feed, Ed.

I have never actually bothered to build a T-Rex. The 600OK can easily exceed it in power and brass is not an issue anymore. I would use a 1917 enfield /P14 bolt approach and save the better actions for a better cartridge myself. Don't underestimate how difficult it will be to get cartridges to feed out of the crude A-square box though. You also have to mill a heck of a lot of metal off of the feed ramp. I believe the old BBK-1 action with the .730 bolt body will also work.-Rob

Can't argue with guys like Rob and Ed on case design/function etc but one thing the 585's have a fair advantage is in bullet choice/weights.

This is only relevant if you want to play around with lighter stuff for smaller game of course.

Karl.

Karl,

I reckon the two choices in the real big bangers for a new rifle are now the 550 and 600 Ok.

With the 600 OK you know you have reached the limit of a conventional action.

The 550 is going to easily deliver all the power that 99.999999999999% of shooters can handle but it lacks the pizzaz of the 600 OK but of course it wins the convenience or ease of doing it aspect. I look on the 550 as the 300 Ultra and 600 OK as the 30/378 in that usuable performance is the same but the 300 Ultra is all a lot easier but the 30/378 has heaps more glitz and pizzaz.

Mike

My only concern about the .550 is whether there will be good quality solids available.

PC is correct that the 585 Ny and 577 Ty have the advantage of a wide variety of bullets available.

The 600 OK has fewer bullets available, but the selection seems ample.

Need solids. Contract any machine shop to turn manganese bronze to .550" and any point geometry you want! It would be soft point that would be DIFFICULT to obtain! Your lack of knowledge is astounding!

You're exactly correct about the license, 500. If Scott Sweet, aka ScottS, AXEL, POSER etc knew half as much as he likes to pretend, he would be the only person any of us would need. We could just direct all of our questions to him.

Unfortunately, he is a catfish........all mouth and no brains.

I was under the impression the atf liscensing was for "loaded" ammunition only and not the manufacturing of components?? Because not until after they are assembled then they become a destructive or explosive device. This is also the reason why you can import bullets without any paperwork through the mail??
After a phone call to the atf houston field office, one of the agents said that this was correct as long as it was not loaded ammunition, made for resale?

A startup bullet maker here in the US was shut down because he started selling bullets without his ATF manufacturer's license. More than 6 months and multiple thousands of dollars later, the license was in place. The manufacturer was, however, permitted to give out free samples during the interim, and to make bullets for internal R&D purposes. So somebody at the ATF thinks a manufacturer's license is needed. One problem with our government agencies is inconsistent or inaccurate information given, such as the person you spoke with on the phone and the customs agent who recently made a hunter fill out a form for exporting rifles instead of the standard 4457.

500grains and others I talked to Tim at Barnes bullets and he said making solids are very easy with little inverted by the company just a little computer time. Barnes will make them if they know there is a demand so call them and let them know there is a demand.

RNS