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32-40 chamber (Read 5734 times)

gwahir Senior Forum Member Offline Ve gets too soon olt und too late shmart. Posts: 463 Location: montana Joined: Dec 31^st, 2005	32-40 chamber Mar 25^th, 2014 at 1:40pm	Print Post
	A chamber on a 44 1/2 has a very tight neck. Could it have been designed for breech seating the bullet rather than loading it in the case?


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creedmoormatch Ex Member	Re: 32-40 chamber Reply #1 - Mar 29^th, 2014 at 6:53am	Print Post
	Just the opposite ! A chamber intended for shooting breach seated cast lead bullets would have a tapered throat cut forward of the chamber end with a so called "throating reamer". Some such throats are cut longer than others. This work is not for a novice to accomplish. Questions ? C.M.M.


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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 12603 Location: Why, out West of course Joined: May 29^th, 2006	Re: 32-40 chamber Reply #2 - Mar 29^th, 2014 at 7:48am	Print Post
	gwahir wrote on Mar 25^th, 2014 at 1:40pm: A chamber on a 44 1/2 has a very tight neck. Could it have been designed for breech seating the bullet rather than loading it in the case? Yes. Many old rifles have very small chamber necks. I've found they shoot very accurate when the bullet is breach seated. Fixed ammo with the bullet being bore diameter works okay when using black powder loads. I think that was Stevens intent. Many old rifles were chambered for bore diameter bullets. Joe.

	A blind squirrel runs into a tree every once in a while.
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Schuetzenmiester Frequent Elocutionist Offline Posts: 6707 Location: Cool Wet Side of WA Joined: Apr 27^th, 2008	Re: 32-40 chamber Reply #3 - Mar 30^th, 2014 at 3:35am	Print Post
	Muzzle load/ breech seat were made that way. You will not breech seat without a mechanical leverage seater.

	"some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence
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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 12603 Location: Why, out West of course Joined: May 29^th, 2006	Re: 32-40 chamber Reply #4 - Mar 30^th, 2014 at 3:55am	Print Post
	Schuetzenmiester wrote on Mar 30^th, 2014 at 3:35am: Muzzle load/ breech seat were made that way. You will not breech seat without a mechanical leverage seater. Yes you can. Use soft, 30-1, 20-1 tapered bullets that measure close to groove diameter at the base. I do it all the time. Joe.

	A blind squirrel runs into a tree every once in a while.
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digitall423 Oldtimer Offline Posts: 747 Location: Mexico Beach, FL Joined: Aug 5^th, 2005	Re: 32-40 chamber Reply #5 - Mar 30^th, 2014 at 7:10am	Print Post
	I have a .32-40 reamer that transitions from the neck diameter to bore diameter with a 45 degree angle. Can a chamber cut thusly be successfully used for breech loading? Bill


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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 12603 Location: Why, out West of course Joined: May 29^th, 2006	Re: 32-40 chamber Reply #6 - Mar 30^th, 2014 at 11:00am	Print Post
	99% of all cartridge rifles are chambered that way. All are breech loaders. If you mean "breech seated", yes. Joe.

	A blind squirrel runs into a tree every once in a while.
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John Boy Ex Member	Re: 32-40 chamber Reply #7 - Mar 30^th, 2014 at 11:11am	Print Post
	Quote: Could it have been designed for breech seating the bullet rather than loading it in the case? Yes, CPA Rifles has reamers that cut the leade for both breech & fix cartridge - call them Phone: 1 (570) 828-1669


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gwahir Senior Forum Member Offline Ve gets too soon olt und too late shmart. Posts: 463 Location: montana Joined: Dec 31^st, 2005	Re: 32-40 chamber Reply #8 - Mar 31^st, 2014 at 11:16pm	Print Post
	Gentlemen, thanks for the input. I have made a mechanical breech seater, but my bullets are .323 and too hard for it to work well. I think I will just turn the neck on a few brass and seat the bullets in the case. I am not quite ready to increase the neck diameter in the chamber, but suppose I am headed in that direction!


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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: 32-40 chamber Reply #9 - Apr 1^st, 2014 at 1:21am	Print Post
	Sounds like your bullet is just to big so don't give up and work with what you have. You do not have to have a leade with a long tapered throat with some freebore as some might lead you to believe to make it work just a bullet that fits. JLouis

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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frnkeore Frequent Elocutionist Offline Posts: 7765 Location: Central Point, OR 97502 Joined: Jun 16^th, 2010	Re: 32-40 chamber Reply #10 - Apr 1^st, 2014 at 1:55am	Print Post
	digitall423 wrote on Mar 30^th, 2014 at 7:10am: I have a .32-40 reamer that transitions from the neck diameter to bore diameter with a 45 degree angle. Can a chamber cut thusly be successfully used for breech loading? Bill Yes, it can shoot very accurately (I had one rifle like that) but, you need a good fitting, tapered bullet. In that type of throat, a over sized bullet will take so much pressure to seat, that it will deform it. By over size, I mean a tapered bullet that has a a base band .002/.003 larger than the groove dia. and the first bands only .001/.002 under groove dia. So, you may have a bullet with as much as .005 taper but actually only .001/.002 of actual taper and your swaging the rest of it into the barrel and it can deform in that process. Same goes for straight cylindrical bullets. The most important part of the bullet is the seal on the base band so, it has to be at least .0005/.001 larger than the groove with your type throat. Assuming a .315 bore and .321 groove, I would want a mold that casts the first band at .318 (no smaller than .317) and the base band at .322 with a fairly even taper in between. BS it with .040 +- .010 left un-engraved on the base band and you'll have a good start to work up a good powder charge. Frank

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