Discussion in 'Blackpowder' started by brewer12345, Apr 27, 2021.
I have the lee conical mold that spits em out .456 and 220 grains. They really liven up my old 1860s and my 1858. They shoot almost as accurate as Roundball though YMMV. They also Load and shoot well on my pietta 1860 and my uberti 1858. I have changed my rammer on my pietta 1860 and havent tried to load them with the stock rammer. They are pretty stout boolits and i would not run them in a brass framed get-up
This will be in a stainless uberti.
Mine is also a stainless 1858 uberti
Mine is in the mail. Can't wait to get my greedy little hands on it. Have the conversion cylinder in stainless as well.
Best bullet would depend on the usage. I’m a hunter so mine must wear a wide meplat so none of the above mentioned bullets would work for me. I create my own designs using Accurate Molds and intend on making a final universal bullet to use in my Pietta NMA and ROA having found their more accurate hunting loads (started at 25 grns of 3F energetic powder) and want to fill in most of the excess with lead after I’ve nailed down their loads (have a new measure that allows me to adjust by 2.5 grns).
Not legal for big game in my state. Any critters I would shoot with this revolver would fall easily to a round ball.
Might as well go with the cheap Lee RN mold unless you are looking for traditional.
It’s not legal in TX during the BP season as a primary but is acceptable as a secondary, during the regular season, and for non game animals such as hogs and axis, about the size of a mule deer.
It’s not necessary like with a ball that needs a long enough bearing surface to create a friction fit. It’s wasted lead on a bullet.
I created my bullets to drop at .456” because I saw the Lee bullet for the ROA measured that somewhere. My next design will be .453-4” as I’d like it just a little over chamber diameter for my Ruger. My NMA has .449” chambers that are chamfered.
I agree with this statement. I think people just feel safer when seeing the shaved lead. I guess its more of a visual insurance of a gas seal. Too many youtube personalities have explained the lead ring thing ad a gas seal instead of actually teaching how the ball travels through the cylinder into the forcing cone and is then squeezed out the barrel end insuring accuracy
I like a chamfer on mine to keep that from happening. Who wants to fiddle with those little rings?
Extract from SHOOTING THE BLACK POWDER REVOLVER, http://www.geojohn.org/BlackPowder/bps2.html :
"Chamfering the chambers does three things for you. First: instead of shaving off a lot of lead and ending up with an undersized, and perhaps unsymmetrical ball, the ball is ‘swagged’ into the hole, thus making it possible to have a gas tight seal (assuming no trapped powder grains). Second: because you aren't cutting lead, but are swaging the ball in place (with just a very thin ring of lead shaved off), the rammer force is usually noticeably less. Third: because some or all of the balls in your cylinder won't be undersized or unsymmetrical by having been cut, each ball should fit the bore and engage the rifling better. When a ball fits the bore and engages the rifling properly, you should get a much more precise shot."
Considering that author used 90° countersink, 45° per side, it doesn't look as the best so called "drawing angle".
Please see article THEORY OF WIREDRAWING https://www.antaac.org.mx/assets/10.-theory-of-wiredrawing.pdf , diagram on page #8. Diagram shows minimum reduction value 10%, so for minimum force, optimum (assuming included) angle is 5°.. If we take for example Ruger Old Army, pushing bullet/ball .457" dia into chamber .452" dia, this is reduction of about 1%. So, I would say that 5° cone (2.5° chamfer) is OK per this article
Sir, did you post that all your revolvers are chamfered with 5° cutting tool? If so, is that 5° per side or included?
Fly reamed and chamfered my NMA cylinder. All I know is that it is now 0.449”. My ROA is still stock, but I’ve been contemplating a having the chambers deepened at which time I’d have it chamfered as well.
I’ve also been contemplating a hand reamer to take my NMA out closer to the .4525” bore it has, but those chamber walls look mighty thin as is. A fellow on another forum has to his, uses powder charges similar to mine using energetic powders as well and with bullets so he’s tried to reassure me. I load 0.457” balls and my 0.455-6” bullets in it and they load quite easily much like you stated.
Coffee has been taken from my diet for a bit so I’ll check out your link on chamfering angles in a bit. Thanks for posting that!
Separate names with a comma.