45 Colt

[gdkmedic]

Hi all. New to the board. What a wealth of info you all share. It is muchly appreciated. I have a ROA with an R&D conversion cylinder in 45 Colt. I am casting a 200gr bullet from a Lyman 452560 mold loaded with 30 grains of FFg. The accuracy is less than desirable. Any advise on how I could tighten up the group? I am casting at a 40:1. Should I be softer, larger bullet? Any advise would be greatly appreciated.


Gary

[Bullshop]

Sometimes lube can make a big difference especially with black powder.
I have had many good reports from folks shooting black powder in revolver both cartridge and percussion using our NASA black powder lube.
Not saying using it will cure your accuracy problem but just saying it may be one area to check into.

[gdkmedic]

I should add that I am using SPG lube and sizing at .452


Gary

[John Boy]

Gary, put up a post on CasCity Darksider's Den ... http://www.cascity.com/forumhall/index.php/board,19.0.html
There are many ROA owners on the board
Mind saying where the group is based on the numbers on the face of a clock?

[Dan Cash]

I should add that I am using SPG lube and sizing at .452


Gary

The SPG should work but is spendy. Try shooting as cast as .452 is too small for the ROA. You need .454 though a well compressed .452 will swell enough to seal up the bore and grab the rifling.

[cajun shooter]

I would try the 454190 design which is close to the original in a 20-1 alloy sized at .454 and lubed with either your SPG or NASA. I shot this combo in SASS matches with very good results. Your 452 is on the small side and when I was shooting the 45 Colt with Goex 2F I had no problem putting 34-35 grains of powder under the bullet. If you are not using a wad or filler then your load is light. If you want a lighter load then the 45 Schofield case loaded with about 27 grains of 2F with a 200 grain bullet will do fine. The 454190 mould I used was a custom built one that had wider and deeper lube grooves than the original. It dropped a 210 gr. bullett at .455 which was sized and lubed to .454 The USFA revolvers had bores that were .453 and the 454 was a perfect seal with the 20-1 alloy.

[gdkmedic]

Thanks for the advice everyone. I will try them at .454 and see if that works.


Thanks again

Gary

[Boz330]

You might check your cylinder and make sure the boolit isn't being swagged down by the cylinder before it hits the barrel.

Bob

[sturf]

You are using a bullet intended for a modern revolver. Does not cary enough lube to work well with black powder and also is too long.. A ROA and any other cap and ball revolver is rifled for a round ball. A heavy (180 gr and up bullet is too long ( Greenhill formula). You need a bullet that closely resembles a round ball. Round ball weighs 147 gr. in 45 cal. Go to www.biglube.com. check out his " ultra gamer 45 cal 150 gr. bullet. Designed especially for 44, 45 cap and ball and 45 colt converted guns. Also check out www.cowboy45special.com. Reduced cap. cases for converted guns for cowboy action shooting. These should solv your problem.:D

[cajun shooter]

gdkmedic, You did say you were using a conversion cylinder meant to chamber and fire standard 45Colt cartridges did you not?

[sturf]

whether the bullets are loaded in a cap and ball cylinder or a cartridge case; same thing applies.

[cajun shooter]

That is not correct in any shape or form. You can't compare a cap and ball load to a cartridge load. I will not get into a p------- contest on this but it is apples and oranges.

[sturf]

Don't want to get into a contest either so lets just shake and leave it at that. God Bless.

[gdkmedic]

Yes it is a R&D cylinder to chamber and shoot 45 colt rounds.

Gary

[gdkmedic]

Thanks for all the input. I think the purchase of a new mold is in order.

Gary