Colt Walker 1847

[Raven]

Flint, that is probably the best explanation of the differences in caliber nomenclature for the transistion to cartridges that I've seen anybody give 

Raven

[Russ McCrae]

Ha-so sin-says of STORM I feel smarter and enlighten already

[Bonnie_blue1861]

Hope no one minds that I bump this discussion back to the top. I'm currently looking to pick up a used Uberti 1847 Walker, with the intention of doing a cartridge conversion. This is some good info.

[rifle]

Considerring the groove diameters I've seen in Walker barrels being a good bit larger than 45cal. (.451-.452) at as big as .468 inch  in the grooves I'd opt for the hollow based or heel based bullet.
I'd wonder if the Kirst Konversion cylinders have throats at close to .452-4 inch or close to .468-470 inch or closer to .475-.480.
Wonder if there's actually a throat to the chambers or bored straight thru for the case leaving an overly large throat for standard .451-2 45 cal. bullets.
Lead bullets being optimum at .001-.002 larger than the grooves in the barrels of revolvers. The loose bullets in the grooves being optimim fer leaded barrels.
I havent heard of problems with Kirst Konverts and leading but someone may be able to shed some light on the leading or no leading.
The Konverters for the Remington "58" and the Army Colt 1860 have chamber throats of what? The Rems and the Army having the nominal .451-2 inch barrel grooves would benifit more by having the throats at the standard .451-2 inch. Some throats of 45 Colt chambers are left the old standard of .456-7-8 being less optimum. I can't remember but I thunk the throats of the chambers of the Konverter for the Remington 58 I had years ago had throats nominal for standard 45 bullets. That right? Throats at around .452-454 ?
I'd be interested in either of the Konverters for the Remington,the Army 1860, the Dragoons and the Walker. Thing is I'd want the throats to be optimum for the barrel grooves.
The slower rifling twist of the cap&ballers at 1-32 for the smaller size 45's and 1-48 for the larger size revolvers compared to the more modern twist for 45's of 1-14 seems to actually help accuracy by lessening the resistance of the bullet to centrifical force that twists the revolvers in the hand. Maybe that's why my Buddy and myself  (years ago) had the fun of shooting a Pietta Remington with a Kirst Konverter and 45 Colt reloads of 6.5 gr. Red Dot and 230gr. bullets at a tuft of grass left in the middle of a plowed and disc field at over 300 yards and doing quite well hitting it and ,mostly, hitting pretty close to it. Duelist style to boot. 

[Bonnie_blue1861]

Well...I just found me a used Uberti 1847 Walker. It currently has an R&D cylinder for .45Colt but I want to eventually swap it over to a devoted cartridge gun, with a Kirst Konversion kit.

I noticed that Kirst has done at least two different types of back plates. One has a swing open loading gate and they also did one without out a gate. Like the one they still sell for the 1849 pocket Colt shown here:

http://www.kirstkonverter.com/coltpocket.html

Has anyone here used one of those open type back plates on a Walker conversion? I ask because I have seen photos of them posted online and they look kind of unique but Kirst no longer shows them on their web site.

Here is one heck of a long link that depicts one without the commonly seen closing gate: http://images.search.yahoo.com/images/view;_ylt=A0PDoX72Z25Qaw8Ag.mJzbkF;_ylu=X3oDMTBlMTQ4cGxyBHNlYwNzcgRzbGsDaW1n?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Duberti%2Bwalker%2Bconversion%26n%3D30%26ei%3Dutf-8%26y%3DSearch%26fr%3Dyfp-t-701%26tab%3Dorganic%26ri%3D25&w=892&h=564&imgurl=i902.photobucket.com%2Falbums%2Fac227%2Fdon3_photos%2FDSC04775.jpg&rurl=http%3A%2F%2Fwww.shootersforum.com%2Fblackpowder-cartridge-shooting-loading%2F61676-walker-conversion.html&size=44.7+KB&name=walker+conversion+-+Shooters+Forum&p=uberti+walker+conversion&oid=eff8869eb80941d44776c41cb01cf607&fr2=&fr=yfp-t-701&tt=walker%2Bconversion%2B-%2BShooters%2BForum&b=0&ni=84&no=25&ts=&tab=organic&sigr=1309sqj5c&sigb=13tssefgr&sigi=11qaqvee8&.crumb=qEEDUO6gTcI

[Slowhand Bob]

BB, I have not used that style back on the Walker but did use it on Remmys.  It worked well enuff but I just never warmed to the appearance aspect.   I have no plans to use a conversion with my Walker BUT if I did, I would want it the way you want yours, a gated converter.

[Graveyard Jack]

I haven't measured my throats or slugged the bore but my 3rd Model Dragoon with Kirst gated conversion shoots very well with .452" cast bullets. So far 200rds without any signs of leading. I have some .454's and plan to test them as well. The chambers are properly cut, not bored through.

[Grenadier]

Just been pondering on doing this to my Walker. I am curious if the current cylinder can be modified to be used with a Kirst gate? I wouldn't need the cylinder if I convert it to a cartridge gun.