Pecos,

I shot 100 gr SP M1 Carbine bullets in a FAL which fires a 7.62X51 NATO cartridge! This load was fantastically accurate in that rifle, actually it was the ONLY load that rifle liked to shoot (unfortunately it did not feed too well from the magazine since the COL was about 0.5" too short).

Why don't you cut out stupid attacks and grow-up? See my problem with you is that I DO have considerable experience with the big bores, and most of what YOU say just doesn't come close to matching ANY of my experience (or any one elses either, I'd wager).

ASS_CLOWN

Has anyone tried using the .510 Barnes round nose solids (600 -650 gr.)in a .50 BMG?
Thanks.

Not I, but 'conventional wisdom' implies that the bullet is too short for typical .50BMG twist rates to stabilize.

George

George,
there's a 642gr 50 round, right? sure, it's longer than the barnes (it's steel and copper) but the barnes woulf be overtwist... or, as f. Barnes called his line of mag "quicktwist"... which fired heavy for caliber at rediculous twists...

I think the barnes 650 would work.. the 600 might.. and the 570 wold be marginal..

thoughts?
j

What is standard twist in a 50 BMG, 1-15, or 1-12? I can't imagine either of those twists would "over stabalize" a bullet. Those are similar twist rates to what most rifles use, and slower than A-square used in their 500 A sq. I can't see any problems with those bullets in a 50 bmg, they are solids so no fear of the bullets coming unglued at high velocities. The only donwside I can see is that even thought you can zip them out the barrel quicker than heavier bullets, the low bc will make them loose velocity in a hurry.

RP - I have tried what might be considered a comparably similar thing. I have fired the little 90gr "lugar" bullets in max loaded 30/06 and I've fired the 60gr pistol bullet from my 257 Roberts.

Accuracy with the lugar bullet were pitiful. The 60 gr bullet (the bullet designed for the .256) shot fairly well but was ultra explosive on impact with anything.

Stretching this situation to your scenario I would predict less than optimum results.

Pecos,



I believe your have gone a tad bit over the top with this one. Your 60 grain load is nowhere near applicable. The mass per unit area of a 600 grain bullet of 0.510" diameter is 0.4196 lbm/in^2. This equates to a 0.308 diameter bullet of 218.83 grains.



The efficiency improvement realized by increasing from the 0.308" bore to the 0.510" bore is approximately 45%.



So what this means is that the equivalent bullet weight for the 600 grain bullet in the 0.51" bore in your 0.308" is approximately 151 grains.



By the way, I have owned a FAL that loved to shoot 100 grain M1 Carbine bullets at 2970 fps! I have known a few SKS carbines that did too, albeit at 2700ish fps.



I really do not think you will see any issues with 600 grain bullets being fired in a 50 BMG! It is done every day in lesser 50 caliber sporting magnums, which frequently have much faster twist rates (1:10 or 1:12 being the most common).



ASS_CLOWN

Ass Clown - If you don't know what you're talking about, just dazzle us with your bullshit and irrelevent numbers.

Of course all these guns will SHOOT almost any bullet you can stuff thru them. DUH! This isn't the issue, in case you missed it.

You're attempted comparison between an SKS firing a 7.62X39mm round with a 100 gr. bullet and my application of the 90 gr. lugar bullet from a 30/06 is laughable. Using your goofy logic, if we take a V8 engine out of a full sized sedan and mount it in a grocery cart, we will get the same results. Right?

As everyone with any longterm shooting and reloading experience knows, OPTIMUM performance is rarely achieved by going to the extreme spectrum of bullets...either up or down in bullet weight.

While I don't consider a 600 or 650 gr bullet a ridiculous choice for a 50BMG, all I have suggested is that I doubt best results will be achieved. Is that concept too difficult for you?

That said, there is more to any bullet selection than just WEIGHT. One should also consider what the bullet was designed for. Both the 90gr lugar bullet and 60gr 256 bullet were designed and built for PISTOLS. Driving these bullets out a barrel at HUNDREDS of fps faster and double the pressures the manufacture ever dreamed of when he built them is probably NOT going to produce OPTIMUM results.

I managed some quite spectacular kills on varmits with the 60 gr bullet from my Roberts but in my mind it was more of a "novelty bullet" than serious hunting load and I don't think I ever even tried it beyond 150 yds. Whenever this bullet hit ANYTHING, all I saw was a gray puff as it blew up.

It might benefit you greatly, Scott, (Ass Clown) to push yourself back away from your 10 key calculator and all your bullshit theories and actually get a rifle and go get a few years of HANDS ON EXPERIENCE.

Nothing beats the real thing. Experience trumps bullshit everytime. I've been loading and shooting them for the last 45 years, which I'm sure is longer than you've been alive.

And you know what, Scott? Even after my 45 years of shooting I still consider myself practically a beginner. There are guys here that HAVE DONE and KNOW a hell of a lot. But you clearly aren't one of them.

The way you come on every forum and make a fool of yourself trying to talk like you are God's gift to the shooting industry is laughable...which I guess is why everyone calls you the Ass Clown.

Are you starting to see a connection here or am I typing to fast for you?

In other words, Scott, shut your mouth. Type a hell of a lot less. Stop pretending you know everything when in fact you know very little...AND THEN you might just actually learn something here!!!!!!!!!!

In fact, people MIGHT be able to start reading your posts without laughing and muttering, "What an idiot!"

Watch out Pecos 45, I got henpecked out of the big game forum for using the "bullshit" word......just because I thought a 6mm 55 gr ballistic tip was alittle light for deer.
Anyhow, I guess one would need to know the purpose of wanting to launch that light of a bullet out of a BMG.
I've got a 300 wby MK V that loves to keyhole factory 110's at 100 yards. I guess the comparison might not be that far off.
It sure would be a fun experiment if you had some of those
solids just laying around though.
Trigger

The 600 gr Barnes would work in BMG, it would just be spinning faster than needed...In my 510HE I got them up to
3000 fps and they stabilized with a 1 - 22 twist fine.
Most bmg rifles have a lot faster twist so they would still be stable.Ed.

Ed,

Thanks!

ASS_CLOWN

As a member of the Barnes Bullets Advisory Staff, I feel it is my duty to make sure the right information gets out there.

The Barnes 600 gr XBT is actually a recommended load for the .50 BMG. Now, this is the boat tail spitzer, but due to bullet shape, this bullet is longer than the 600 gr RN Solid. As it stands, the longer bullets typically require a faster twist to stabilize (rotational velocity required to stabilize a projectile is dependent on FAR more factors, including velocity, length, density of medium, density of projectile, angle of flight, etc. As such, you can stabilize some bullets in slower twist barrels despite conventional wisdom being other. Accuracy is a whole other story, because over stabilization (the bullet no longer precesses as desired) can wreak havoc on apparent accuracy)

But I digress

The 600 and 650 gr RN will do just fine in the 50 BMG in terms of meeting minimum required stabilization velocity. Accuracy may suffer somewhat and as was stated earlier, BC is lower and will reduce long range effectiveness. I would HIGHLY recommend going with the 600 gr XBT, as it is mentioned in the Barnes Manual, which means load data is available. BTW, the 570 gr coated RN Solid is also listed in the load tables.

Hope this helps