No, the 500 A-Square is not a dead cartridge just because the 500 Mbogo is on the horizon.

Here is what I do to make my 500A2 and 510JAB rifles more fun with 750-grain bullets at 2100 to 2200 fps in the 23-incher (BRNO ZKK 602) and 27-incher (Ruger No.1):


The screw-on muzzle brakes add 2 inches to each of the rifles, making them 25" and 29" with brakes.

The slip-on pads make them comfortable even for bare-chested shooting. With the pads off, the LOP is good for a heavy winter hunting jacket.

The Zeiss Jena scope with integral mounts is just a curio, as I prefer the 4-16X mildot scope by Sightron for 942-yard cowpasture plinking: 5 mil holdover

Amazingly it has held up to over 200 rounds of fireforming and shooting off the long bipod from a sitting position (the bipod, retracted above, extends to twice that leg length).

McMillan stock for the BRNO, Bell and Carlson on the Ruger.

I still have the pretty walnut for the Ruger, uncracked. The B&C is more easily replaceable if I crack it, but I doubt I will.

... Just killing time, waiting for Stuart Satterlee to make a Stainless Magnum Mauser action.
I've got dibbs on the first one!

OH YEAH. THE BARRELS ABOVE ARE BOTH 1:10" TWIST and they are McGowen stainless.

Accurate target bullets in the 500A2, for Recoil Inhibited Play:

Milsurp 690-grain M2 AP
750-grain Hornady A-Max: BC = 1.050
705-grain Harlow

Best fun is had with a 1:10" TWIST with a 500 A2.
It is good to see that the tide has turned, here at AR.COM and even Robgunbuilder accepts that FACT. He has finally seen the light. However sometimes he forgets this recent memory item and reverts to his old ways of decrying the "wicked fast twist."

Could be the first signs of recoil induced dementia, you know, forgetting newly learned things ...

Ah, well, he can blame it on the 12GFH and the 600 OK, but at least he is not blind yet. Sometimes less lead in the air means more hope.

Holly crap RIP, those bullets make that case look like a 308. Here I thought the 378/460 had some recoil. You're one sick dude. In a good way of coarse.

You know what they way, slow twist means limp wrist.

those look great...you just need to take the belt off
5 min with a file or 10 sec on a lathe to get those right.

quote:

Originally posted by MTM:
Holly crap RIP, those bullets make that case look like a 308. Here I thought the 378/460 had some recoil. You're one sick dude. In a good way of coarse.

MTM,
You miss the point.
To the nearest pound these rifles both weigh about 11 pounds bare, and can be loaded up to roughly 14 pounds with all the add-ons.

Depending on the variables, these recoil levels can slightly exceed 140 ft-lbs and 28 fps at worst, but adding the weight and the muzzle brake can tame them below 100 ft-lbs and closer to 20 fps recoil velocity. It feels to me like the brakes and weight get them below 75 ft-lbs free recoil, almost cuts it in half. And those ear muffs are so soothing too.

That is the point: Save your retinas and future educability and preserve your dancing ability by recoil reduction.

That is indeed gentle for the payload delivered and still easily portable. Nothing bigger than 50 cal makes much sense. And yes, this is not about making sense.

quote:

Originally posted by 500grains:
You know what they way, slow twist means limp wrist.

quote:

...you just need to take the belt off ...

The 500 A-Square shoulder is actually bigger than the shoulder of the 10.75x68mm Mauser.

500 A2 step per side at shoulder = .031"/2 = .0155"
10.75x68mm Mauser = .027"/2 = .0135"

500 Mbogo = .040"/2 = .020"

fast twist must mean penis envy then...1:18" is better for both than a puny 1:8" or whatever you have.

Rich
DRSS

What is the Idaho Zephyr blowing about now?

Too much bother to click the show post button.
Someone will have to quote him for me to be able to see it.

the shoulder is bigger than the belt so why not

If you don't mind, I'll take pictures, relax, and drink a cool one.

fast twist and muzzle brakes, in plastic stocks, with high powered scopes..

good for you ron.. not my cup of tea, but you enjoy the heck out of them, it seems

But Jeffe,
The color of the plastic is walnut brown on this one, same rifle as you object to:


It is a shame that you do not tolerate a McMillan stock. Open your mind and enjoy the possibilities: strength, durability, ruggedness, no-worries use in the field, impervious to weather, etc., etc., blah, blah, blah ...

I think you are just trying to be difficult.

Your other objections hold no water at all: The scope can be replaced with a 2.5X Leupold or use open sights only.
The brake can be removed and a thread protector screwed on.
And the 10" twist does no harm at all in helping a 570-grain GSC FN pass through, entering the south end and exiting the north end of a north bound 1830-pounder. The rifle pictured below is 44.5" long as shown with the bison. What do you figure the number of bison-feet of penetration is?

quote:

Originally posted by jeffeosso:
fast twist and muzzle brakes, in plastic stocks, with high powered scopes..

good for you ron.. not my cup of tea, but you enjoy the heck out of them, it seems

Ron
you might read what *I* wrote


none of these terms were originated by me..
"object to" "tolerate" "open your mind" "objections"...

quote:

Originally posted by RIP:
I think you are just trying to be difficult.

oh,
jeffe

Ron- In a .500a2 shooting .50BMG bullets you and I both know the 1:15 is way batter! Sorry if you got stuck with a 1:10 twist, if you would have asked me I would have enlightened you. I still have my pipewrench!!!! I agree with Jeffe, that thing is butt ugly! You do have enough eye relief don't you? That scope looks like a great recipe for a super-glue eyebrow to me. -Rob

Rob,
My heart goes out to you. You can't even remember what you said about the 500A2 twist thing last week. Short term and recent memory slipping, eh? That's O.K., your fame is assured as the revered creator of the 600 OK and 12GFH. Just look at it as a new career as poster boy for Recoil Induced Dementia (RID). You are going to be more famous than ever.

Beauty is as beauty does, form follows function, and extended pinky finger shooters are more likely to get scope eyebrow since they also tend to grip less firmly. A scope has never drawn blood from me.

BTW, if hunting with the .510 JAB in the McMillan stock, I use open sights or a 2.5X Leupold scope with the occular end lining up flush with the trigger. No way it could touch my face unless I let go of the rifle as I pulled the trigger.

this reminds me of the song "trashy side"

http://www.youtube.com/watch?v=QzwWtLdtbgE

i think the 500 a.r. is all you need in the 500 arena. unless you wana go crazy with the belted rum

quote:

Originally posted by 500grains:
You know what they way, slow twist means limp wrist.

oddly enough, Rob, Rip, and I all have at least representative fast twist rifles to discuss the matter from.... though Ron has the most at 30% ...

and, then, SOME posters that swear up and down that one is "limp wristed" without fast twist...

don't own a fast twist rifle.

LOL

...here we go again...

Any rifleman who finds my rifles objectionable, well, that "rifleman" wears pink panties with lace trim.

The only rifles that interest me are accurate rifles with synthetic stocks, therefore always accurate, rain or shine. Even Colonel Whelen would agree.

Pretty walnut and engraving is like pink panties in the field. If they are showing, then the rifleman's ass is showing.

Rugged and functional is better than an extended pinky finger anytime.

I am guessing that KMuleinAK is a rugged individual, and has a highly functional .510/460Wby version of the 500 A2 that has a 10" twist barrel.

RID (recoil induced dementia) =

Guys - thanks a bunch for all the laughs, I appreciate it


RIP - that would be a 510/460WbyImp

KMule

1 in 10 has its place maybe.............Helps
the weak 500ASQ, Nyati, Trex, etc,.......
make penetration....tongue in cheek, hahah.
Look at the penetration the Kid
with right size gun, a 4bore, on African hunt, with
a twist like 1 in 48.Ed

quote:

Originally posted by hubel458:

Look at the penetration the Kid
with right size gun, a 4bore, on African hunt, with
a twist like 1 in 48.

Ed

Yes, please, tell me of that penetration. How good (or bad) was it?

Anything bigger and badder than a 500A2 is merely a stunt, and very silly in a bolt rifle.

A 25-pound 4 bore double is cool to look at and shoot occasionally, maybe once per year, on your birthday, like "Hey look at me, I'm bad!"

Ron,
why don't you show the respect others have shown you on this post?
jeffe

Jeffe,
If you can't take the heat, stay out of the kitchen!

Of course engraving of the rifle's caliber/chambering-designation and the name of the gunsmith on the barrel does not count as "pink panties." That engraving is informational, very useful.

For example, my .510 JAB is engraved as follows:

.510/460 Weatherby Improved Jenkins And Berry