View Full Version : The 7" .50 Project

11 February 2017, 19:04
Just wanted to say hi and my first post to be an interesting one. This project was wrapped not to long ago. Just wanted to see what you guys think.
Hope you enjoy:

started with, a vltor vis-1

http://img.photobucket.com/albums/v207/benelliman2/bw/1_zps18wjptgt.jpg (http://smg.photobucket.com/user/benelliman2/media/bw/1_zps18wjptgt.jpg.html)

Standard 5.56 opening. notice the "lip" on the bottom.

http://img.photobucket.com/albums/v207/benelliman2/bw/2_zpsrwokjbqs.jpg (http://smg.photobucket.com/user/benelliman2/media/bw/2_zpsrwokjbqs.jpg.html)

Just for reference, this is how a standard ejection port would handle a .50

http://img.photobucket.com/albums/v207/benelliman2/bw/3_zpsidtlaebr.jpg (http://smg.photobucket.com/user/benelliman2/media/bw/3_zpsidtlaebr.jpg.html)

Measure 5, 6, .... cut once

http://img.photobucket.com/albums/v207/benelliman2/bw/5_zpsvataqtys.jpg (http://smg.photobucket.com/user/benelliman2/media/bw/5_zpsvataqtys.jpg.html)

Clean up time. the shell deflector ended up coming off later for a deep clean

http://img.photobucket.com/albums/v207/benelliman2/bw/4_zpse4vnpfvz.jpg (http://smg.photobucket.com/user/benelliman2/media/bw/4_zpse4vnpfvz.jpg.html)

Barrel specs:

Satern Machine
7.5" 12.7x42
Stainless Steel button rifled
49/64x20 threads
.875 gasblock
finished in tefon
matched bolt

http://img.photobucket.com/albums/v207/benelliman2/WP_20160331_006_zpsyceipuk8.jpg (http://smg.photobucket.com/user/benelliman2/media/WP_20160331_006_zpsyceipuk8.jpg.html)

http://img.photobucket.com/albums/v207/benelliman2/WP_20160331_007_zpssvlkchhq.jpg (http://smg.photobucket.com/user/benelliman2/media/WP_20160331_007_zpssvlkchhq.jpg.html)

http://img.photobucket.com/albums/v207/benelliman2/WP_20160331_015_zpsuyrlzmdt.jpg (http://smg.photobucket.com/user/benelliman2/media/WP_20160331_015_zpsuyrlzmdt.jpg.html)

and one to put it in perspective

http://img.photobucket.com/albums/v207/benelliman2/WP_20160401_11_12_58_Pro__highres_zpslospw6ek.jpg (http://smg.photobucket.com/user/benelliman2/media/WP_20160401_11_12_58_Pro__highres_zpslospw6ek.jpg. html)

11 February 2017, 19:05
http://img.photobucket.com/albums/v207/benelliman2/DSC_0075_zps3ahg5ion.jpg (http://smg.photobucket.com/user/benelliman2/media/DSC_0075_zps3ahg5ion.jpg.html)

http://img.photobucket.com/albums/v207/benelliman2/DSC_0101_zpswzu0zuov.jpg (http://smg.photobucket.com/user/benelliman2/media/DSC_0101_zpswzu0zuov.jpg.html)

http://img.photobucket.com/albums/v207/benelliman2/DSC_0113_zpszgefna18.jpg (http://smg.photobucket.com/user/benelliman2/media/DSC_0113_zpszgefna18.jpg.html)

http://img.photobucket.com/albums/v207/benelliman2/WP_20160412_035_zpsatxohrpj.jpg (http://smg.photobucket.com/user/benelliman2/media/WP_20160412_035_zpsatxohrpj.jpg.html)

http://img.photobucket.com/albums/v207/benelliman2/WP_20160412_033_zpsdn73vuss.jpg (http://smg.photobucket.com/user/benelliman2/media/WP_20160412_033_zpsdn73vuss.jpg.html)


11 February 2017, 19:06
I also had a custom ejection port made for it

In the closed position it lets you know whats coming:

http://img.photobucket.com/albums/v207/benelliman2/6tag_230416-165136_zpsfysdpasg.jpg (http://smg.photobucket.com/user/benelliman2/media/6tag_230416-165136_zpsfysdpasg.jpg.html)

Some of you may not know what this means but for those that do.... Once the door drops we go straight to "11"

http://img.photobucket.com/albums/v207/benelliman2/WP_20160423_014_zpsivkarjwe.jpg (http://smg.photobucket.com/user/benelliman2/media/WP_20160423_014_zpsivkarjwe.jpg.html)

http://img.photobucket.com/albums/v207/benelliman2/WP_20160423_011_zpsvyxn91y7.jpg (http://smg.photobucket.com/user/benelliman2/media/WP_20160423_011_zpsvyxn91y7.jpg.html)

11 February 2017, 19:33
Now that's a skull cracker! I would not want to use that in a hd scenario! Very nice build.

11 February 2017, 20:39
Thank you!

This was it's first incarnation. the redi mag is gone and the stock is now an ACE SOCOM


And heres some stills from some slow mo video we took

http://img.photobucket.com/albums/v207/benelliman2/Kaboom%202_zpswplaz78j.png (http://smg.photobucket.com/user/benelliman2/media/Kaboom%202_zpswplaz78j.png.html)

http://img.photobucket.com/albums/v207/benelliman2/Kaboom%203_zpszzsdyhxg.png (http://smg.photobucket.com/user/benelliman2/media/Kaboom%203_zpszzsdyhxg.png.html)

11 February 2017, 21:28
Whoa quite the Boom Puppy!

11 February 2017, 23:14
Looks like you ruined a perfectly good VIS-1 [:D]

Jerry R
12 February 2017, 06:28
Impressive build! Very nicely done.

12 February 2017, 13:58
Absolutely insane! [:D]


13 February 2017, 04:20
WOW! That's pretty cool.

What optic is that? I've seen it a few times but don't recall what it is.

14 February 2017, 08:38
That uneven ejection port is tormenting me. It haunts my dreams.......lol

14 February 2017, 16:21
Thanks guys for the kind words.

It drove me nuts that we didn't go across all the way on that ejection port but I chickened out not wanting to go past it. To his defense, my neighbor the machinist, said I got this but I shut him down. And for the record, I did regret not going all the way for about a week or two. BUT, I'd rather be short than have an ocean of waves like some of the dremel jobs I've seen.

As far as wrecking a VIS-!... my brother said the same thing! lol My response is, It's not wrecked till I bring you back two pieces.

And finally, the optic... It's a Holosun 503GU and is holding up very well. These things are built pretty good.

14 February 2017, 17:43
About the ejection port, I wouldn't even worry about it. Some super high end 1911's have a similar cut to facilitate the ejection of live rounds.

So yeah, if people give you crap then just tell them that. [:D]

14 February 2017, 18:09
I'll bet that SOB is LOUD!

I shot some big caliber pistols and you could feel the concussion from 10 yards behind the shooter.