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mykeal · May 19, 2009, 01:34 PM

Yes, a FAQ thread on what nipples fit what revolvers would be nice.

All medium frame Piettas (including the 1860 Colt Army, 1861 Colt Navy, Starr SA and 1858 Remington New Army and New Navy) take a metric thread nipple: M6x0.75mm. The Track of the Wolf part number is PIR-A for the Ampco (Treso) nipple. The Treso part number is 11-50-10, although some purveyors use 12-50-10.

Treso nipples are all sized for caps with the larger opening diameter (sometimes known as "No. 11"). They have a smaller flash channel than standard steel nipples, but the Ampco material (which is a proprietary beryllium/bronze alloy) is very hard and does not erode like the standard nipple flash channel. They are also much more resilient to dry firing, which translates to much longer life from repeated hammer strikes with a cap installed. Well worth the money in my opinion.

May 19, 2009, 01:34 PM	#2
mykeal Senior Member Join Date: October 8, 2006 Location: Northern Michigan Posts: 2,772	Yes, a FAQ thread on what nipples fit what revolvers would be nice. All medium frame Piettas (including the 1860 Colt Army, 1861 Colt Navy, Starr SA and 1858 Remington New Army and New Navy) take a metric thread nipple: M6x0.75mm. The Track of the Wolf part number is PIR-A for the Ampco (Treso) nipple. The Treso part number is 11-50-10, although some purveyors use 12-50-10. Treso nipples are all sized for caps with the larger opening diameter (sometimes known as "No. 11"). They have a smaller flash channel than standard steel nipples, but the Ampco material (which is a proprietary beryllium/bronze alloy) is very hard and does not erode like the standard nipple flash channel. They are also much more resilient to dry firing, which translates to much longer life from repeated hammer strikes with a cap installed. Well worth the money in my opinion. Last edited by mykeal; May 19, 2009 at 01:41 PM.