I ended up buying the Dan Wesson Razorback, from a friend. It's 148 out  of the original 150. I shot it a few rounds tonight, and it's very accurate, and has the original match barrel, not ramped. It also has a Bo Mar style adjustable rear sight, which I wanted for on this gun. Being left handed I will probably add an ambi-safety, and I usually always switch out to an arched mainspring housing and short trigger.

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Very nice acquisition.  The early Razorbacks are highly prized.

I feel obliged to remind you that the quality of this thread would be greatly enhanced by some pictures.

If it doesn't have a ramped barrel be careful of exceeding what it will handle.

I seem to recall that the unramped barrels that DW used had less throating, and therefore more support than the delta Elite.

I think I remember Swamp Fox issuing a warning against use in early Dan Wesson pistols.

I am probably wrong.  I can't find any supporting reference.

Intercooler2 , 03-05-2011 01:20 AM

Snippet:

"Ok, here is what I have come up with for those that are interested, whoever they may be.
I am going to continue to sell ammo but with the following conditions.
This may limit my sales but what is actually done with the ammo is no longer going to be my direct responsibility, although maybe shared and will require colaboration between myself and anyone that is interested in buying ammo.
All ammo will be specified as requiring a fully supported chamber and an increased recoil spring. as is required by other similar manufacturers.
These could be aftermarket or factory fully supported chambers, including match grade barrels etc. If there is any question an evaluation will need to be done to insure the barrel has a fully supported chamber. Some pistols come this way from the factory, S&W 1006 and SA XDM's come to mind.
The springs are generally available for most pistols, in the event of no spring available, a somewhat lighter load will be offered.
Each purchase will require a small consultation between myself and the buyer to understand the application and the requirements for the ammo.
I will offer a fully supported chamber barrel and spring for any glock, 1911 or other pistol that does not meet the chamber/spring requirement at just very slightly above costs.
Lone wolf offers barrels for most glocks and offers, IMO the best support overall. KKM and Storm Lake also offer for glocks and also for 1911's but at a higher price. I have dealer accounts with each of these and will facilitate a barrel for the purchaser.
Some pistols that are known to have insuficient chamber support are glocks, dan wesson, and possible others.
Each pistol model will have to be evaulated to determine the support if no other data is available.
All ammo will be listed on my site as requiring a fully supported chamber and increased spring except ammo for revolvers, which are currently offered at slightly below max book speeds and pressures anyway.
I am firmly commited to safety and high performance at the same time but cannot compromise safety for the sake of performance.
I cannot accept responsibility for the design of firearms that do not meet the criteria that is required for Max pressure ammo.
Having said that, The ammo that has been currently offered has been very successful in practically all firearms with the exception of just a few.
These few firearms will absolutely fall into the category of fully supported chamber only.
Most of the others will be eligible at the owners discretion as to whether they are functionally safe. G20 falls into this category. Its at the owners discretion. But if an issue arises, It better have a fully supported chamber and increased spring in it.
I will make the current offereings the same as before but will add my disclaimer that no g29 will be sufficiently robust without an aftermarket chamber and spring.
The same is true from my own tests of Dan Wesson. There are others and they will be idenitified and listed and I grow this list.
I will post this in my terms of service and will be absolutely clear that any use of this ammo outside of the above mentioned terms is in violation of the terms of service and will not get any support from SwampFox Ammo. Only firearms that follow these guidelines will be covered.
I will be enhancing this statement and will post it in my terms of service on my site.
Anyone that purchases from my site will have to agree to the terms of service. anyone that does not agree will be prohibited by making a purchase.

I am not going to hot rod it. I don't think my wrist will take the snap of the really hot 10mm's anyway, if I need that kind of power, I will just go on to one of Super Blackhawks. But I am looking forward to shooting the Dan Wesson, and I figure I can take down about anything I am inclined to shoot with the 10mm anyway using more or less standard loads.

Intercooler;

How fast can I safely push a 175 to 180gr bullet out  of my older Dan Wesson with the unsupported chamber? And how fast could that same bullet be pushed out of it if it had a replacement barrel with fully supported chamber? I just wanted to know the spread or difference.

I never played around with the older DW. It should be fine with the Delta Elite style loads. Anything in the 600lb range of muzzle energy should be just fine. Most of the upper end ammos are over 700 like Swamp Fox was.

Depends on a lot of things beyond just bullet weight and velocity.  With cast bullets, I would expect you could get up around 1300 fps for a 175-180 grain.  Jacketed maybe a touch less.

Work up slowly and measure case heads, looking for signs of smiles.

Nice and congratulations.