View Full Version : After 1 year with My Pietta NMA w/ 5.5" barrel.

January 31, 2009, 09:45 PM
Well it has actually been over a year since I had this little revolver in my hands from Cabelas & the engineering side of me turned this little jewel into a Conical Launching machine that is is today.

As some may remember I started my work by smoothing & tuning the action.
Reamed all 18 Chambers to .451 from .446 to better fill the .4495 groved bore.
Recrowned the barrel.
Opened up the nipple area of the cylinders for use of a Snail Capper.
Widened up the right side of the loading window to accept the .456 220gr. Lee Conicals.

Now after all that work & tailoring a load that it likes with the Lee .456 conicals it'll shoot 2.25" groups at 25 yards "as long as I do my part" & with only 30gr. FFFG Goex I witnessed it chrono at an average of 718 FPS. with a extreme spread of 84, temps were 40*F intermittent 2mph cross wind.

Those conicals load very easily & even with the moderate charge the felt recoil is in between a .38 spcl. & a .44 spcl. out of a 6" barreled revolver but I was supprised that I was pushing a 220gr. bullet at over 700 FPS.

These were taken from 16' on my Pro Chrono.
Bullet = .456 220 grain Cast Lee conical bullet .147 BC
Powder = Goex FFFg black powder.
Primer = Remington #11
5-1/2” Barrel Average Ballistics.
30gr. Volume = 718 fps. 254 ft. lbs.

It's not a super power but it surely isn't a slouch.


What do y-all think?

January 31, 2009, 11:11 PM
Pretty cool.:cool:

Hoss Fly
February 1, 2009, 10:32 AM
Nice :cool: ( 4 a Remmie :p )

February 1, 2009, 11:05 AM
I've probably put around 1200 shots through it since I got it home & it has become one of my favorite revolvers, "I'll have to keep my brother from seeing this one because then he'll want to claim it as his like he did my 3RD. Dragoon."