I have a general question on the MK3 sniper.. It seems like if you want to shoot slugs over 920 fps (by viewing reports here and on YouTube) that the larger plenum is a requirement. Is that true?
I have the 25 cal inbound that I located at Penchetta - one of the only places I could find one. I would like to launch slugs with my gun. So I am anticipating that I will need the larger plenum and am currently looking at the Huma option since I could not find any other options available. Huma has the plenum inside the air tube as opposed to the extension. I would prefer the extension of the air tube to include the plenum so I would consider any other alternatives.
Thanks for the tip on the mag holders. Just ordered one.
The Wildcat MKIII Sniper is very capable of shooting slugs without the addition of a power plenum see this YouTube video from Air-Hunter Gerhard:
https://youtu.be/tfQgOjqhDjM
If the MKIII is tuned for accuracy with a particular weight slug ammunition it certainly can and will be able to perform the task.
But, what a larger plenum and proper tuning will do for the airgun is increase the WC MKIII’s ability to shoot lighter slugs and heavier slugs faster. For example, with no plenum and the correct tuning the fastest I was able to shoot a 33.5 grain slug was maybe 910 -920 FPS for about 63 FT. / LBS. this was great, usable, accurate, and effective. After the addition of the plenum and tuning my MKIII will push those same 33.5 grain slugs 975 FPS for 70 FT. / LBS. On top of that with the Sniper’s adjustable hammer spring tension wheel, it can be dialed back down easily to several repeatable lower speeds if desired.
Don’t know why the MKIII power plenum extensions where taken off the market ( it’s stupid). The Dreamline plenum is still there?? Anyway...
The alternative currently is the XL Plenum Extension Huma-air produces. Which would work in the same way, but as you mentioned would decrease the high pressure reservoir volume in the Wildcat’s air-cylinder. You would also lose the ability to externally adjust the Huma-air regulator versus the FX AMP regulator. One would have to remove the air-cylinder and the Huma-air regulator to make adjustments each time. But, I have had FX’s with Huma-air regulators for years and I personally love the regulators they always have worked perfectly for me.
As a matter of fact look at this thread from the other day I posted? I compared my Huma-air XL power plenum’d
Wildcat MKII to the
Wildcat MKIII both in .25 caliber.
https://www.airgunnation.com/topic/25-fx-wildcats-mk-two-and-three-power-plenums-superior-stxs-light-slugs/?referrer=1 Like I tell anyone who asks me, you can shoot any airgun as is straight out-of-the-box or you can spend a little more, tinker and tune a little more, and make them do a little more. Your choice...
Just research on the correct ways to do these modifications and don’t muck up your airgun?!
Magazine holders are working out great! They kind of remind me of something.
HOO! HOO!
JK
JK
. May as well get one, inexpensive piece.
So I also read that a new version was potentially incoming too. Maybe I will wait it out and get what I want because I do want to push those over 920 without having to reach for the stars.
