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Range Officer
Range Officers
Dans Club
February 28, 2009
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I'm thinking of trying .327 Federal Magnums in my .32 H&R.
The bullets are the same size. 
The cases are identical except for the length.
I measured the cylinder; It's plenty long enough.
The cylinder diameter is the same as for a 715 or maybe 1/32 inch smaller.
The only question remaining is: are the pressures generated by the .327 greater than those generated by the .357?
Also, someone should check my measurements, please.
Let me know your thoughts.
-Mike
January 22, 2008
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I might be in the minority on this one but I would probably give it a try... although I might drop Keith an email at DW to get his thoughts first to be on the safe side.
327 Mag Max Pressure: 45,000 PSI
357 Mag Max Pressure: 35,000 PSI
Range Officer
Range Officers
Dans Club
February 9, 2009
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Mike,
If it fits and you can extract them, I don't think you are capable of hurting the revolver, it is a Dan. Interesting to see what Keith thinks. He may be required to advise against it as a manufacturers representative, no matter what his personal feeling may be.
SMF
A man cannot have too many SuperMags
Supporter
Dans Club
March 25, 2013
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What is the pressure of heavy handloads many use in a 357? Must be the equivalent of .327.
October 26, 2008
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Unless Dan purposely chambered it long, you'd have to have the cylinder reamed to accept 327. Send Keith an email and see if he'll do it I can't see any reason why you couldn't.
Range Officer
Range Officers
Dans Club
February 28, 2009
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superdan said
Unless Dan purposely chambered it long, you'd have to have the cylinder reamed to accept 327. Send Keith an email and see if he'll do it I can't see any reason why you couldn't.
I'm not sure why you say I need to have the cylinder reamed to accept the .327. All the dimensions of the cartridges are identical except the length. The length would not require reaming, it would require a longer cylinder if the cylinder was too short. However, the cylinder is plenty long enough.
Perhaps I'm not understanding your meaning. If you can tell where I've misunderstood, please instruct me.
Thanks.
-Mike
Supporter
Dans Club
March 25, 2013
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I authorize you Mike to try it and settle this. I would if I had a .32 mag. The small frame gun is strong enough to handle IHMSA loads and the .32 cylinder has even more steel than a 357 . This is the opinion of a non professional with no liability of course. If it works, buy as many ,32 mag dans as you can find before you announce the results. Again, more unqualified advise.
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Moderators
Dans Club
February 22, 2009
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Mike- It all boils down to chamber dimensions. The chambers on the 32 may not accommodate the length of the 327 FED brass. I almost bought some 327 ammo today but holy cow are ammo prices high. Been a long time since I bought commercial.
327 brass is 1.2778" long and the 32 H&R is only 1.1528"
Technically, the glass is always full; half liquid, half air....
Range Officer
Range Officers
Dans Club
February 28, 2009
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Good thought Ron. But since the cartridge doesn't headspace on the case, it's prolly OK. I'll check it out by trying to put a 32 mag in from the front.
-Mike
October 26, 2008
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Mike, yes the case headsaces off the rim. However, the cylinder is chambered for the 32 H&R length case and will not accept the 327 case unless it is reamed out with a chamber reamer. Remember that the cylinder isn't just bored straight through.
A similar situation is the difference between. .38 special and. 357 Mag you can shoot 38 in a 357 but not vice versa because the chamber length is different.
October 26, 2008
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A picture is worth a thousand words, these are from SAAMI. The dimensions in the gold boxes are the longest length that the chamber will allow. You will have to have the chambers reamed to allow a 327 cartridge to be chambered unless for some reason Dan Wesson had their reamer made longer which I can't understand why they would.
32 H&R Chamber
327 Federal Chamber
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Range Officer
Range Officers
May 2, 2009
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It's been done...yes it works....yes you need to ream it to accommodate the longer case just like SD said .... All I need is a spare cylinder.
SHOOT
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Dans Club
Moderators
November 17, 2008
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Lots of good info here but "My" simplistic mind thinks simple. I would venture a guess the Dan will handle the pressure if the cartridge will fit (correctly). Do you have any 327 brass to try? I can send you a few spent cases to see if they will chamber if you like. If a fired 327 case will chamber easily then it stands to reason the chamber is long enough. Whether DW did that on purpose or not who knows. Is my theory sound or am I nuts? Go ahead I can take it.
LB
Wisdom is merely the realization of how little one knows, therefore I am wise.
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Dans Club
March 25, 2013
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Inquiring minds want to know. Did they or didn't they ream it longer to accomodate a future .32 supermag.A fired case may fit but not with the bullet. OK, more questionable advice but it is free. Go to your local, friendly gunstore with the unloaded revolver and ask to borrow a 327 cartridge. Better yet, ask them to check, they will do it for you in order to sell some pricey ammo.
Range Officer
Range Officers
Dans Club
February 28, 2009
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Wow! Thanks for the education guys. I guess I'll have to take it to the gun shop and try one on.
-Mike
Supporter
Dans Club
March 25, 2013
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PS, my wife say, "You can't ream length." She's one smart babe. BOY, do I love her. (she is a retired prison warden. Gotta be smart to deal with cons and guards.
Range Officer
Range Officers
Dans Club
February 28, 2009
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Well, I looked closer and discovered, of course, that you guys were right. It'll take a good reaming to be able to put a .327 FM in the cylinder.
Maybe I'll consider having Keith make me an unfluted cylinder in .327 FM. Might be a selling point if I ever do.
-Mike
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