View Full Version : .577 Tyrannosaur

01-16-2015, 12:08 PM
[Taken from another site]

Well finally got my .577 Tyrannosaur ready for the 2014 Sasquatch hunting season.

http://imagizer.imageshack.us/v2/1024x768q90/834/ss153.jpg (https://imageshack.com/i/n6ss153j)

http://imagizer.imageshack.us/v2/1024x768q90/845/7zbqa.jpg (https://imageshack.com/i/nh7zbqaj)

http://imagizer.imageshack.us/v2/1024x768q90/843/wffdd.jpg (https://imageshack.com/i/nfwffddj)

http://imagizer.imageshack.us/v2/1024x768q90/842/ui7qb.jpg (https://imageshack.com/i/neui7qbj)

The rifle was built on a CZ550 receiver with a 23 inch barrel with a weight of 10.8 lbs. The stock was built from a blank. Rifle holds two in the magazine plus one chambered. The caliber is a A-Square Inc round. That is the major drawback, since they went out of business and I cannot get any new brass or ammo. Cost was about $90.00 for 10 cases and $160.00 for 10 rounds of loaded.

The recoil is crazy, but I never load to full power levels. The powder range is between 140 grains to 180 grains of H4831. The lower ends are actually not bad. I have a .338 Win Mag that kicks harder with factory loads.

One range session is about 5 rounds, anything beyond that it hurts. Cool range toy.


I'm sure you've all seen this video before.


Rory McCanuck
01-16-2015, 01:02 PM
180gr of powder.
That would certainly highlight any deficiencies in your hold or stance.
Once you picked yourself back up off the floor ;D

01-16-2015, 01:04 PM
I had no idea they were that hard to kill.:eek1:

01-16-2015, 01:05 PM

01-18-2015, 12:51 AM
And some pussys say that the Mosin Nagant kicks hard...

01-18-2015, 08:04 AM
I'll take 3, charge it to the guy posting above me ;)

01-18-2015, 04:31 PM
I'll take 3, charge it to the guy posting above me ;)

One for each hand, sure, but what's the third one for?

01-19-2015, 01:40 PM
Love it :D

01-19-2015, 02:07 PM
One for each hand, sure, but what's the third one for?

01-19-2015, 10:26 PM

Need a mag fed semiauto version instead I think something like a BAR

Then the yanks can make a slide fire for it :)

08-16-2015, 01:08 PM
I have taken down a variety of late Cretaceous Dinosaurs, ranging from small theropods to fairly large duckbills and various sizes of Tyrannosaurids, including Albertosaurus, Daspletosaurus, and one trophy book Tyrannosaurus Rex. And I've done it all with a 30-06 Kimber Montana 84L using 180 grain Nosler Partitions at 2700 fps. Like they say, its where you hit them, not what you hit them with. The 30-06 truly is the all purpose caliber.

08-16-2015, 06:36 PM
What he said. If it can't be downed by a 30-06 (the calibe of choice of newborn baby Jesus), your shot placement is terrible. My Browning BAR holds only four, and I would feel completely comfortable with a male moose charging me.

Don't get me wrong, I totally get the awesome feeing of overkill and I'd love to have a 50BMG, but only to shoot 1km. If something is close, 30 calibre is downing it.