Those with carbon fiber tubes in 73 question

[Cheyenne Culpepper 32827]

For those with carbon fiber tubes in their 73 or 66 have you experienced less Bullet collapsing in cases.  I never had issues in my marlins

Edited July 16 by Cheyenne Culpepper 32827

[Larsen E. Pettifogger, SASS #32933]

1 minute ago, Cheyenne Culpepper 32827 said:

Bellerophon collapsing

What is this?

[Abilene, SASS # 27489]

I have a carbon fiber tube in my 32-20 '73 but I have never seen a Bellerophon at all, much less near my rifle. (I had to google it).  So I wonder what it would take for auto-correct to come up with that one?? 

[Larsen E. Pettifogger, SASS #32933]

Bellerophon

 

[Idaho Gunslinger]

55 minutes ago, Abilene, SASS # 27489 said:

So I wonder what it would take for auto-correct to come up with that one?? 

Must be a regular word in his vocabulary that his phone prefers! 

[Cheyenne Culpepper 32827]

Oops.  Should have proof read it

[Larsen E. Pettifogger, SASS #32933]

The tubes have zero to do with bullets collasping into the case.  That is a function of the quality of your brass (e.g., case neck splits) and crimp.  The tubes help with friction in the tube caused by smaller diameter rounds zigzagging in the tube.  Uberti uses only one size tube for all its calibers.  Original Winchesters and Marlins used tubes for large and small calibers.  In the first photo is a .45 in the Uberti tube. 

 

 

In this photo there is a .357 in Uberti tube.  On the left is a small caliber Marlin tube.  In the good old days I use to put Marlin tubes in Uberti tubes for .38s and below as they were an exact sliding fit in the Uberti tube.  The only problem is this made the guns, especially those with 24" barrels, muzzle heavy.  The aluminum and plastic liners reduce that weight.  But neither of these liners is going to have diddly poop to do with bullets collasping into the case.

 

 

Edited July 16 by Larsen E. Pettifogger, SASS #32933

[Boggus Deal #64218]

And to add to Larsen, neck tension. The reason I don’t expand my cases, just bell them enough to seat the bullet. I let the bullet expand the case to fit. That way , if by some chance you short stroke the press or have a short case, the case neck tension holds the bullet and crimp is not as important.

[Colorado Coffinmaker]

PLUS ONE for Pettifogger.

 

Also, I am a firm believer in a firm CRIMP 

 

However and Also, the Magazine Tube inserts do result in smoother feeding for the smaller cases, ie. 38/357 and 32-20.

Edited July 16 by Colorado Coffinmaker
Add a little comment

[High Spade Mikey Wilson]

I put a tube in my Uberti '73 in 32-20 that seems to load and feed a little smoother. Bullets collapsing into the brass case is either a split case neck, or a poor crimp. I do the extra step of using a crimp die after bullet seating on all the calibers I load.

[Cheyenne Culpepper 32827]

I’ve always used a heavy crimp, but like I said I never had an issue with a collapse until I went to the 73.   Seems coincidental to me.   Even heavier crimp now.   
 

I also inspect each round before loading it

Edited July 16 by Cheyenne Culpepper 32827

[Larsen E. Pettifogger, SASS #32933]

11 minutes ago, Cheyenne Culpepper 32827 said:

Seems coincidental to me.

There you go.  A tube is a tube.  Does not matter if it is on a Winchester, Marlin or Uberti.

[Lassy LaRock]

Carbon fiber is not a good idea for weapons.

It causes severe contact corrosion with steel. It behaves electrically like a precious metal.

[Mister Badly]

If you are using the same cartridges you used in the Marlin the new rifle might have a stronger/longer spring which exposed the crimp issue. 

[Sedalia Dave]

47 minutes ago, Lassy LaRock said:

Carbon fiber is not a good idea for weapons.

It causes severe contact corrosion with steel. It behaves electrically like a precious metal.

 

THANKS.

 

For those that want to research further.

 

Galvanic activity of carbon fiber reinforced polymers and electrochemical behavior of carbon fiber

Edited July 17 by Sedalia Dave