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Picked up a Blackhawk convertible in .40/10mm
http://www.rugerforum.com/phpBB3/viewtopic.php?f=3&t=267767
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Author:  grobin [ Fri Apr 20, 2018 4:09 pm ]
Post subject:  Picked up a Blackhawk convertible in .40/10mm

Just got a good deal. I was looking at the redhawk 10mms and saw the Blackhawk for $200+ less. So far looks good I'll give it a try when (if) it stops snowing!

Darn wrong form! Please move! Don't text in a moving vehicle.

Author:  dakota1911 [ Fri May 25, 2018 3:03 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

I think you will like it. Last year I bought a longer one. Here under my 1976 Blackhawk in 357 Mag.

Image

Then this year I bought the shorter barrel length. Here with my Ruger/Williams Blackhawk in 357/9mm.

Image

Author:  Onty [ Fri Jun 01, 2018 6:44 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

dakota1911 wrote:
I think you will like it. Last year I bought a longer one. Here under my 1976 Blackhawk in 357 Mag.

Image

I didn't have a clue that BH in .40/10mm was made also in stainless. Assuming barrel is 6.5".

Also, looks like that .40/10mm cylinder is bit longer than for 357.

Author:  gs50401 [ Thu Oct 25, 2018 5:53 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

I bought a 6.5 inch while trying to find a 4.62. It is a real shooter with no QC issues at all. I use the 40 cylinder about 90% of the time. Fairly cheap 40+ bore fun.

Author:  grobin [ Thu Oct 25, 2018 6:22 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

So far it's been great! I wish that the sight were better but they are OK. The gripe I've got is that locally 40 ammo isn't a whole lot heaper than 10mm unless I go to Al or steel cases and real junk loads. Now that Ive got dies I'll gt reloading RSN (Real Soon Now). oing to try cutting down a tree with it.

Author:  CraigC [ Thu Oct 25, 2018 8:53 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

If only it were the mid-frame.

Author:  contender [ Thu Oct 25, 2018 8:58 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

grobin,, reloading is the ONLY way to go! If you were near me,, I'd give you a bucket full of brass!

Author:  ShooterScott1 [ Tue Oct 30, 2018 4:24 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

dakota1911 wrote:
I think you will like it. Last year I bought a longer one. Here under my 1976 Blackhawk in 357 Mag.

Image

Then this year I bought the shorter barrel length. Here with my Ruger/Williams Blackhawk in 357/9mm.

Image



Some real beauties, I'm jealous, wish I had the money to pick some of those up.

Author:  1ruger [ Tue Oct 30, 2018 4:53 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

How hard can you push the 10mm out of Blackhawk?
Can you load to push 200gr to go 1,250+fps?
Also, what is the heaviest bullet available for 10mm?

Author:  32shooter [ Tue Oct 30, 2018 6:06 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

Could a guy ream it out to a 10mm magnum? Double tap has a 230gr load at 1250 fps. Starline has the brass.

Author:  grobin [ Tue Oct 30, 2018 7:19 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

1ruger Buffalo Bore has factory loads pushing 220 grain bullet to between 1140 and 1201 fps in 4/5" barrels. Hornady has 10mm bullets up to 300 gr (the 325 are discontinued apparently). Ive seen some reloading info for 250gr at 1400fps but I can't find it now.

32shooter th blakhawk comes n 10mm! .40==10mm :roll: :roll:

Author:  NikA [ Tue Oct 30, 2018 9:03 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

10mm Magnum is a different cartridge from 10mm Auto. Significantly longer. I believe Jeff Quinn has his 10mm GP reamed for the magnum cartridge, so I'd bet it will fit in the BH as well.

Author:  32shooter [ Wed Oct 31, 2018 4:09 am ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

grobin wrote:

32shooter th blakhawk comes n 10mm! .40==10mm :roll: :roll:


I should have said lengthened, instead of reamed. Hope I didn't confuse anyone.

Author:  grobin [ Wed Oct 31, 2018 1:30 pm ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

Got a chance to measure my Blackhawk cylinder.
Total l=1.7+
Length to sholder ls=0.992. (SAAMI & measured)

10M&M case 1.242. (http://www.sixguns.com/tests/tt10mag.htm)
Case 1.255 (https://loaddata.com/Cartridge/10mm-Mag ... ide-2/4049)
COL 1.555 max (ibid).

I've found a couple posts where a 10mm reamer was used to recut the shoulder successfully!
(https://www.ar15.com/forums/general/10m ... 5-2077771/)

I believe that the answer is yes!

With limited data from https://loaddata.com/Cartridge/10mm-Mag ... ide-2/4049
1380 fps with a 200 gr bullet is a Max load.
Double tap lists it at 1450 fps;
230 gr8 at 1250fps.
http://www.doubletapammo.net/index.php? ... uct_id=721

Regular 10mm is a good hunting cartridge and 10M&M just a bit less punch than the 41 mag.
41 mag 210 gr 1545 fps.

Author:  gs50401 [ Wed Jun 26, 2019 9:42 am ]
Post subject:  Re: Picked up a Blackhawk convertible in .40/10mm

I use mostly 180 gr. 40 in mine vs trying to make it a magnum. It is a modern version of the 38-40.

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