Author Topic: Reloading with hollow base bullets  (Read 9106 times)

Offline Blackfoot Blue

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Reloading with hollow base bullets
« on: July 14, 2011, 10:33:40 PM »
Hey Folks, I am new to the site, been hanging around awhile, but finally registered.
     A question for those reloading Yodas.
     If I reload 38 long colt with Trail Boss using the data on the IMR website, but use a RNFP Hollow base instead of the LRNFP, is the reload data the same as far as the powder? The bullet weight is the same (150 gr).
     I'm reloading for a Kirst converted Pietta 1851.  Thanks for any input. I'm new to reloading and not looking for unwanted excitement...  Blackfoot Blue   

Offline Adirondack Jack

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Re: Reloading with hollow base bullets
« Reply #1 on: July 15, 2011, 01:35:53 PM »
Whenever we stray from the exact bullet in some data, we have to make sure our case capacity under the bullet is as close to the same as possible, or adjust accordingly.  when both are flat based bullets, it's pretty easy to eyeball and see how deep they seat.  HB bullets complicate that a bit, but not overly so.  Most HB bullets end up so the skirt seats a little deeper than a flat based bullet of comparable weight, but the HB "dome" compensates, added back some of that case capacity.

If ya took the flat based bullet and held it beside the HB, so the crimp grooves are even, and eyeball the bottoms, and you see that say half the length of the HB "dome" extends beyond the plane of the flat based bullet, yer gonna be so close to equal it ain't funny.   NONE of our smokeless COWBOY load data is so hot that any closer a comparison is really needed.  Now if the HB bullet sits a LOT deeper in the case than a flat based bullet, revert to starting load data and work up to get a satisfying load. 

Specifically with trail boss, unless you use so much powder that the charge is compressed, squishing the grains, you can't have enough pressure to hurt anything.  That you can eyeball by charging a case and holding the bullet alongside it.  If the bullet is gonna smash the powder down, back off.
Warthog, Dirty Rat, SBSS OGBx3, maker of curious little cartridges

Offline Pettifogger

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Re: Reloading with hollow base bullets
« Reply #2 on: July 15, 2011, 08:32:15 PM »
The more interesting question is where are you going to find .38 LRNFP hollow base bullets in shootable quantities at a decent price?  They are strictly a custom cast affair and you constantly have to be on the alert for a replacement if your supply dries up.

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Re: Reloading with hollow base bullets
« Reply #3 on: Today at 09:39:52 AM »

Online MMA10mm

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Re: Reloading with hollow base bullets
« Reply #3 on: July 16, 2011, 11:08:34 AM »
The more interesting question is where are you going to find .38 LRNFP hollow base bullets in shootable quantities at a decent price?  They are strictly a custom cast affair and you constantly have to be on the alert for a replacement if your supply dries up.
Or, build a fire, put on a pot of lead and get a mould for yourself!   ;D

Offline Sir Charles deMouton-Black

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Re: Reloading with hollow base bullets
« Reply #4 on: July 16, 2011, 11:40:59 AM »
If you have to use flat point hollow-base wadcutters, they must be loaded to show lead exposed beyond the mouth of the case.
NCOWS #1154, SCORRS, STORM, BROW, 1860 Henry, Dirty Rat 502, CHINOOK COUNTRY
THE SUBLYME & HOLY ORDER OF THE SOOT (SHOTS)
Those who are no longer ignorant of History may relive it,
without the Blood, Sweat, and Tears.
With apologies to George Santayana & W. S. Churchill

"As Mark Twain once put it, “History doesn’t repeat itself, but it does rhyme.”

Offline Blackfoot Blue

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Re: Reloading with hollow base bullets
« Reply #5 on: July 16, 2011, 11:05:38 PM »
Thanks for the replies you guys...
                   Adirondack Jack - that makes alot of sense Thanks

                   Pettifogger - Yeah, it seems like everything I like is either expensive, hard to find, both or runs away from me screaming...

                   MMA10MM - At some point I know I'll be forced to mold. Right now I,m trying to get the reloading part right...

                   Sir Charles deMoulton Black - I have some .38 special brass in case I want or need to load HB Wadcutters. I just liked the idea of the older type cartridges...
                                                                 Blackfoot Blue

Offline litl rooster

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Re: Reloading with hollow base bullets
« Reply #6 on: July 17, 2011, 05:02:16 AM »
 a quick search found these they are a bit spendy

http://www.buffaloarms.com/Detail.aspx?PROD=157080&CAT=4136
Mathew 5.9

Offline Colt Fanning

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Re: Reloading with hollow base bullets
« Reply #7 on: November 18, 2011, 08:05:28 AM »
Howdy
"If you have to use flat point hollow-base wadcutters, they must be loaded to show lead exposed beyond the mouth of the case."
 
Why is this necessary?

Regards
Colt

Offline Sir Charles deMouton-Black

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Re: Reloading with hollow base bullets
« Reply #8 on: November 18, 2011, 11:01:50 AM »
http://www.sassnet.com/Downloads/RO/SASSHandbook-16-2010.pdf

page 12, "bullet" 4;  "Ammunition with bullets recessed below the case mouth is disallowed."
NCOWS #1154, SCORRS, STORM, BROW, 1860 Henry, Dirty Rat 502, CHINOOK COUNTRY
THE SUBLYME & HOLY ORDER OF THE SOOT (SHOTS)
Those who are no longer ignorant of History may relive it,
without the Blood, Sweat, and Tears.
With apologies to George Santayana & W. S. Churchill

"As Mark Twain once put it, “History doesn’t repeat itself, but it does rhyme.”

 

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