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Not a BMG, but a much small case head with the 300WSM which had too much breech thrust even at 150gr 30-06 velocities, when 3000fps was approached, the action flexed creating a gap at the top of the barrel and breech face, I think if the frame was changed to provide support closer to the latch or they used a larger diameter pin and a more robust latch, belted magnums would be a possibility, but as it is, anything much bigger that what's factory chambered now isn't possible.

Tim
 

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Discussion Starter · #4 ·
Spanky said:
I'd like to see someone hang onto a 50BMG Handi Rifle. :D :eek:

On second though... Tyler might be able to hande it ;D ;D



Spanky
I built a single shot BMG on an AR frame once...wjich i lighter than a Handi. It wa s ::)...exciting ::), but shootable.
 

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Discussion Starter · #6 ·
Spanky said:
peternap said:
I built a single shot BMG on an AR frame once...wjich i lighter than a Handi. It wa s ::)...exciting ::), but shootable.

How bad was the recoil on it?

The only 50 BMG I've ever been behind was "Ma Deuce" and it was turret mounted. ;)



Spanky
Well....let's put it this way. I've built two rifles that I just dread shooting. One is a Spanish Mauser in .308 that I milled every spare scrap of steel off of, then made a skelatonized aluminum stock and the butt width is 3/4". It is a joy to carry on my mountain bike (before my knees finally went south) but was like shooting a meat clever....the other was the AR which was worse.
 

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Discussion Starter · #8 ·
jy951 said:
Are you being serious with this question?
Kind of...

I have one of the lug gun barrels at a friend house now so we can use his lathe to chamber it for the 12FH when the reamer gets here. The FH i just a BMG case blown out straight, the head turned and threaded for a screw on 12 ga rim.

The Handi's don't have any trouble handling it so I occurred to me, someone may be using
a 500 barrel with down loaded BMG'.

The pressure isn't an issue but I wasn't sure about flex. The TC's can't stand it either.
 

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Discussion Starter · #9 ·
peternap said:
jy951 said:
Are you being serious with this question?
Kind of...

I have one of the slug gun barrels at a friends house now so we can use his lathe to chamber it for the 12FH when the reamer gets here. The FH is just a BMG case blown out straight, the head turned and threaded for a screw on 12 ga rim.

The Handi's don't have any trouble handling it so I occurred to me, someone may be using
a 500 barrel with down loaded BMG'.

The pressure isn't an issue but I wasn't sure about flex. The TC's can't stand it either.
 

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peternap said:
Since Tim mentioned the BMG in another post, has anyone tried a 50 BMG in a Handi? :eek:
yep i just did
it went right into the 12gage chamber like it was meant for it
it was too scary to even close the action

maybe we ought to just leave one out loaded that way
encase we get robbed........let them drop the hammer

a safer bet would be to ream it to a 500 MAX as if 500mag is not too much already
wont be long now till some one does
 

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Pressure isn't the only factor, case head size and pressure are the determining factors concerning frame strength, the larger the case head, the lower the pressure needs to be on an H&R frame, see bolt thrust on the Lilja site. The 500S&W has an operating pressure of over 50kpsi (SAAMI MAP 60kpsi, but the highest data I've seen is ~52kpsi) and an inside case head diameter of ~.501", that calculates to over 9800lbs of breech thrust, that's likely the safe limit of the SB2 rifle frame, the SB2 shotgun frame is likely less due to the thinner frame rail tops.

Tim

http://www.riflebarrels.com/articles/custom_actions/bolt_lug_strength.htm
 

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Discussion Starter · #12 ·
quickdtoo said:
Pressure isn't the only factor, case head size and pressure are the determining factors concerning frame strength, the larger the case head, the lower the pressure needs to be on an H&R frame, see bolt thrust on the Lilja site. The 500S&W has an operating pressure of over 50kpsi (SAAMI MAP 60kpsi, but the highest data I've seen is ~52kpsi) and an inside case head diameter of ~.501", that calculates to over 9800lbs of breech thrust, that's likely the safe limit of the SB2 rifle frame, the SB2 shotgun frame is likely less due to the thinner frame rail tops.

Tim

http://www.riflebarrels.com/articles/custom_actions/bolt_lug_strength.htm
That' entirely correct Tim and the reason the Handi's handle the FH well. The FH's are in the 25K region with Handi loadings. A BMG could be light loaded (Boy that's an oxymoron) to that level but that's one of those guns you would have to make sure no one ever accidentally fired a full house load in.

The only real reason I can think of to do this is for braggin rights. ;D
 

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As Spanky suggested, you could get Tyler to field test it, he's our resident recoil junky!! ;D ;D ;D I was gonna send him some more 720gr .458" Ranger Rick's for his 45-120 BC, but I was afraid he'd hurt himself shooting them at 1800-2000fps. :eek:

Tim
 
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