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blown up barrel
muss
Member Posts: 1,311 ✭✭✭✭✭
My brother was shooting his Ruger 270 light weight yesterday. It was magna-ported about 15 years ago. Well yesterday it gave up the ghost.
The barrel SPLIT in half right where it was ported. The first 2 inches (muzzle end) of the top half of the barrel is now standing almost straight up at a 90 degree angle.
Question???
Can he get the barrel turned down and recrowned behind the split area?
The barrel was 18" so the 16" SBR may be an issue with turning it down, I measured the barrel and I think we can get 16 1/8 of usable barrel.
The barrel SPLIT in half right where it was ported. The first 2 inches (muzzle end) of the top half of the barrel is now standing almost straight up at a 90 degree angle.
Question???
Can he get the barrel turned down and recrowned behind the split area?
The barrel was 18" so the 16" SBR may be an issue with turning it down, I measured the barrel and I think we can get 16 1/8 of usable barrel.
Comments
It was Magna-Ported by an after market co. called Magna Port.
So Ruger will not touch it.
They seem a reputable outfit and there is a chance they would help him fix it so as to keep their reputation.
They seem a reputable outfit and there is a chance they would help him fix it so as to keep their reputation.
Yep, that's what I would do.
After all, the failure wouldn't have happened without the Magna Porting.
Sharp corners and abrupt changes in crossection are stress risers that can increase stress several hundred percent on stressed parts. That's why designers use generous radii when necessary.
I would expect to see either by eye or under a microscope the conchoidal progressive failure ,known as fatigue failure, nucleating at one of the sharp corners of the cutouts.
I would prefer the 16" shortened barrel with a Browning style tunable muzzle brake if given the option by Magna Port.
Please give us a followup on this.
If they see a potential personal injury suit coming their way, they may not help you at all. Try to be nice and non-demanding, that usually helps.
Since it was done 15 years ago, not recently. There are most likely other contributing factors above and beyond the magna-porting, that caused the failure, i.e. the quality and original workmanship of/on the barrel.
Since the failure occured at the alteration, suspicion should fall on that first, then the parent metal. The degree of stress rise relates to amount of radius which eases transition of crossection discontinuity. A sharp corner is worst, a generous radius is best.
Actually, we're talking about a fillet (internal) not a radius (external).
The appearance of a conchoidal fracture means it was a progressive failure occuring over time. These failures often occur at the start of an arc.
Thanks.