Uberti 1873 SSA Frontier 44-40 from 1995 Cylinder Chamber Mouth diameter to large!!

bigbuck007 · December 30, 2013, 05:38 AM

Dear all,

As mentioned my 44-40 1892 El Tigre is doing fine with 6.5/7grain Trailboss/ or 33grain Ffg and .428 lead bullets

My next challenge is now my Uberti SSA Frontier 44-40 from 1995

Its barrel is .428 BUT the cylinder chamber mouths are .434!!!

With this set up none of my tests with 6.5/7grain Trailboss and .427, 428, .429 and .430 lead bullets showed any positive precision results..

Any ideas how i can solve this .434 chamber mouths problem

Thanks for your kind help

BigBuck

Hawg · December 30, 2013, 09:41 AM

A 95 Uberti should have a .430 bore. SAAMI spec for 44-40 chambers is .4435 at the case mouth.

Roshi · January 1, 2014, 02:03 PM

it seems as long as the chamber mouths are larger than the bore and the bullet is soft lead and bigger than the bore accuracy should be OK.

salvadore · January 1, 2014, 05:36 PM

Bigbuck007, I have a third gen. Colt SAA in 44 spec. for about 30 years. Chambers were also .434 and the barrel .427. I could minimize gas cutting by using cast bullets @ .434. Borrowed a co-workers Lyman 42798 mold that cast to that size. He retired and left the area and I ran out of his bullets. I guess it's too late to make a long story short, but bought a .45 Colt barrel and cylinder and had a gunsmith replace the .44 spec.s....good luck.

salvadore · January 1, 2014, 05:43 PM

Almost forgot, the .434 bullets were pretty accurate and Ideal's Anderton bullet worked well also, one cavity drove me crazy. My .45 Colt has .454 throats and is accurate even with soft alloy bullets that measure .4525.

bigbuck007 · January 1, 2014, 05:56 PM

Dear all

Thanks for your advices. I am going tp look for .430 again as soft as possible.

++ .430 won t work in the cylinder anymore- to thick...

Have a great new year folks

December 30, 2013, 05:38 AM	#1
bigbuck007 Member Join Date: March 5, 2012 Location: Bavaria Posts: 67	Uberti 1873 SSA Frontier 44-40 from 1995 Cylinder Chamber Mouth diameter to large!! Dear all, As mentioned my 44-40 1892 El Tigre is doing fine with 6.5/7grain Trailboss/ or 33grain Ffg and .428 lead bullets My next challenge is now my Uberti SSA Frontier 44-40 from 1995 Its barrel is .428 BUT the cylinder chamber mouths are .434!!! With this set up none of my tests with 6.5/7grain Trailboss and .427, 428, .429 and .430 lead bullets showed any positive precision results.. Any ideas how i can solve this .434 chamber mouths problem Thanks for your kind help BigBuck __________________ Do unto others as they would do unto you, but do it first." Amen

January 1, 2014, 02:03 PM	#3
Roshi Senior Member Join Date: December 21, 2010 Location: Houston Posts: 223	Forgive my aging mind but... it seems as long as the chamber mouths are larger than the bore and the bullet is soft lead and bigger than the bore accuracy should be OK.

December 30, 2013, 09:41 AM	#2
Hawg Senior Member Join Date: September 8, 2007 Location: Mississippi Posts: 16,188	A 95 Uberti should have a .430 bore. SAAMI spec for 44-40 chambers is .4435 at the case mouth.

January 1, 2014, 05:36 PM	#4
salvadore Junior member Join Date: January 1, 2007 Location: Idaho Posts: 2,282	Bigbuck007, I have a third gen. Colt SAA in 44 spec. for about 30 years. Chambers were also .434 and the barrel .427. I could minimize gas cutting by using cast bullets @ .434. Borrowed a co-workers Lyman 42798 mold that cast to that size. He retired and left the area and I ran out of his bullets. I guess it's too late to make a long story short, but bought a .45 Colt barrel and cylinder and had a gunsmith replace the .44 spec.s....good luck.

January 1, 2014, 05:43 PM	#5
salvadore Junior member Join Date: January 1, 2007 Location: Idaho Posts: 2,282	Almost forgot, the .434 bullets were pretty accurate and Ideal's Anderton bullet worked well also, one cavity drove me crazy. My .45 Colt has .454 throats and is accurate even with soft alloy bullets that measure .4525.

January 1, 2014, 05:56 PM	#6
bigbuck007 Member Join Date: March 5, 2012 Location: Bavaria Posts: 67	Dear all Thanks for your advices. I am going tp look for .430 again as soft as possible. ++ .430 won t work in the cylinder anymore- to thick... Have a great new year folks