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 Best X39 Platform? - Side by Side Tests - Vids
martin08  [Member]
6/15/2010 9:13:19 PM
I originally made this post for SKS Boards, but I know that there are many here on AR15.COM who appreciate a live fire review. So.....


THE TEST

I recently had a chance to take part in some live fire demonstration videos with Gibson_GM, utilizing the 7.62 X 39 cartridge with four distinctly different platforms.

1. AK-M, a WASR-10/63 standard function AK47 carbine.

2. SKS-M, a factory altered commercial SKS that accepts AK mags.

3. Standard SKS, modified to accept Duck-bill-less Tapco 20 round mags, and employing the Scythian Extended Magazine Release and an Ultra Modified Drop-Free bolt.

4. Standard SKS with no modificatons, using stripper clips.




Each of the three detachable mag models were subject to three magazine depletions with two swaps on the fly. Three sets of stripper clips were used in the standard SKS. All were shot with controlled aim for the purpose of demonstrating versatility of reloading in sustained cover/offensive/defensive fire situations.


PURPOSE

No other reason except that it was possible to accomplish such a feat with the firearms at my disposal on that day. Oh, and I had a good time.

The video demonstrations will allow the viewer to observe the function of all four platforms and draw conclusions based on live-fire performance. No preferences or recommendations were made during the filming of the videos, though I may express an opinion or two later on in this thread.

Now it is time to enter the Disclaimer:

Firearms can be dangerous if not used properly by the operator. All modifications performed to any firearm are done at the sole risk of the owner. Practice common sense, safe procedures, control, and respect for others when shooting.

That being said, I have experienced no ill effects from the modifications I made to my firearm in over 600 rounds. Gibson_GM is taller than me. And no creatures larger than horse-flies were injured during filming this important and historical event.


THE VIDEO

Here are the videos shot on my home range on June 13, 2010. Again, there are no recommendations. It is up to the viewer to draw conclusions.

AKM, SKS-M and Duck-bill-less comparison -
http://www.youtube.com/watch?v=CPuv2MjH5pM

Gibson_GM going Duck-bill-less -
http://www.youtube.com/watch?v=Ca7tEDt5Nfc

Gibson_GM with Standard SKS and stripper clips -
http://www.youtube.com/watch?v=Qi912fp5qBY



NOTES:

A. I modified my own standard SKS to accept the Duck-bill-less Tapco 20 mags, but there is a ready made adapter that can be bought and easily installed to modify any standard SKS to accept quick-change detachable modified Tapco mags. Get this technology here -

www.thesksmagadapter.com

B. The extended mag release can also be installed on any standard SKS, and can be acquired here -

http://www.thebumpband.com/

C. The Ultra Modified Drop-Free Bolt instructions will be covered later in the post.

D. If you own a standard SKS, it is assumed you already know about stripper clips.

E. The AK and SKS-M take AK mags, and AK mags don't fit into standard SKS's without radical and expensive alterations. Again, AK mags won't work in a standard SKS. OK? OK. (and AK mags won't go into a standard SKS, either)



HISORY

The development of the Duck-bill-less has been covered quite well in the Sticky Threads and earlier topics found in the The Marcus Magazine Adapter section of Survivor's SKS Boards.

http://www.sksboards.com/smf/index.php?board=65.0


Marcus' SKSMagadapter is very a well refined accessory with high reliability.




This is my Tapco 20 round SKS mag with the duckbill lopped off.





Special mention here goes to Lollygagger for helping me build my own Duck-bill-less. .... and to Galahad who administers the Survivor's SKS Boards forum and allows me to post stuff like this without banning me! (yet :shock: )

There are may other players who were integral in bringing all this combination of technologies to the forefront and making them into a working reality. These good folks can be found with their contributions and satisfied remarks in the threads of the Marcus Magazine Adapter section.

Lollygagger, Marcus and myself also worked out the kinks of what I like to call the Ultra Modified Drop-Free Bolt that allows the Duck-bill-less Tapco detachable mags to be better inserted freely onto a closed SKS bolt. This thread explains the process and reasoning.

http://www.sksboards.com/smf/index.php?topic=68147.0


Here are some pics of my Ultra Modified Drop-Free Bolt.








This is Flyingmonkey's and Prince50's brainchild, the Scythian Extended Mag Release which enhances the detachable SKS mag experience to the nth degree. It works really well.








CONCLUSION

Here is where I have an opinion.

I really like my Duck-bill-less a lot. And I have fun with all guns on the 7.62 X 39 platform. I eat too many chocolate doughnuts.

In my personal test, the total time elapsed from charging the handle to the last controlled round fired was:

25 seconds for the AK
22 seconds for the SKS-M
18 seconds for the Standard SKS with Duck-bill-less


Gibson's outings took 23 seconds for the Duck-bill-less and 25 seconds for the stripper clips.

And finally, Gibson_GM is a great video producer and much taller than me (still!). Thanks Gib, for your hard work on this.

As readers, viewers and enthusiasts, your own conclusions and opinions are more than welcome.

Always shoot safely. Have fun.

Martin