Two updates in a little over a week!
Another big one... Had a big game this past weekend (what a blast) so last week I broke out the MG to do some final checks/testing. During the testing, I noticed my FPS was consistently low, so I pulled the stock off and checked the spring. Sure enough that was the issue, it had broken haha. I guess you put enough cycles into it and it will snap.
Looking at an early 4am morning drop off at the airport the following morning, I packed up after this discovery and called it a night.
Friday before the game I broke out my tools again to finish the work I had started. I also received a package of joy from Canada Post, brand new SHS High Torque motor!
So after making the necessary adjustments for motor height I went and put it all back together, found an appropriate spring in my collection of spares and went to test fire. Initially things looked good, she was shooting around 340 FPS with 0.28g bbs, which is the equivalent of a hair over 400 FPS with 0.20g. Wanting to check my 1500 round box mag I did some more shooting only to see the FPS consistently drop to 240ish and fluctuate significantly.
So cracked open the gearbox again, tested airseal at the piston/cylinder - ok all good there, tested the nozzle and found that the O Ring on my SHS nozzle was more or less garbage after seeing a ton of use. Not surprising. I had recently run into a similar issue on my ICS M4 that I put the same nozzle in a year or so earlier than when I did the MK46. On my M4 I also found that with a prommy purple bucking, the SHS Red M4 nozzle is longer than I like (21.4mm) but the AK Long nozzle (20.7mm) seals up fairly optimally. I happened to have a spare so grabbed that, tossed it in, and she was back up shooting 345-348 w/ 0.28g bbs consistently!
Worth noting is that this setup is very specific to the parts I'm using, nozzle length should suit your combination of airseal/hopup parts.
Lastly I took the Gate MERF 3.2 mosfet I had been using in my M60 and transferred it over to my MK46. With the trigger being able to give a single shot with a rapid trigger pull, I decided to maximize that with the mosfet setting the "fire control" to a 3x burst on "semi" and full auto on full auto. So with a rapid trigger pull, the MG now fires a 3 round burst, and holding the trigger longer gives normal full auto functionality. This turned out to be super useful for closer kills where I wanted to make sure I hit my target, but not overshoot someone. This turned out to work very well for close range ambushes on multiple targets... 3x burst - next target, 3x burst - next target, etc.
So, after that it was off to finish packing for an early start and then heading out to OP Valour 2019. Game had a great turnout with 260+ in attendance raising around $17,000 to support PTSD.
A few shots from the game, MK46 in action along with some mounted LMG eye candy!
Escorting an armoured column up a narrow road, we expected an ambush and were not disappointed! The MK46 and a team mates Stoner LMG were instrumental in allowing our riflemen to move in and eliminate OpFor attempting to disable the column.
Our squad advancing on an enemy position defending a hidden WMD.
Getting ready to advance on the enemy position. We unfortunately got outflanked while attempting to flank the enemy position, our squad of 3 got hit by a large force from behind in poor terrain.
Humvee complete with mounted M60
Hagg 5 complete with M134 minigun, knocked out.
