Looking good! Nothing wrong with a URG-I ?View attachment 115914
So this ?is the fruit of my labour. I'm going to post a bunch of pics I took during the build and put a parts list together to bore you all with, but today was about getting it onto the range to see what it could do.
A couple of weeks ago, as an out-of-the-box M4A1 Carbine, it was hitting out to 60m on .28g BBs and Ultrair, with a good degree of accuracy, which, for me means hitting a Figure 11, roughly centre-mass, at that distance. Made me smile, and smile and smile.
Today, testing this iteration was, well, a huge disappointment. Although the range was like-for-like on .28s and green gas, I just could not get any consistency in shots. One would go straight as a die, resulting in a nice metallic 'clink' off the target. The next would fall short, barely half the distance, then another would fuck off into the stratosphere.
Adjusting the hop made very little difference to the randomness of the shots. The only internal changes I made were a different Zet plate (which worked brilliantly) an enhanced nozzle return spring and a different hop nub, all by BavTac. I can only assume that, while replacing the hop nub, either the nub or hop rubber is not sitting squarely. Adding weight to this theory is the fact that, with the can on, BBs were shattering before leaving the barrel, or dribbling out like it had a prostate problem. Any other thoughts on root cause before I whip the tools back out?
On the plus side, chucking in .3s and .32s, still with regular green gas, when a shot did go straight, it was heading to the 70m target, so I'm hopeful that when I get this sorted, it'll be chucking white plastic death out to decent distances. Oh, and IMHO it looks gorgeous. Yes, it's another URG-I, but it's still a handsome beast.
Gas testing will have to wait. I now have 8 variants to try in the name of science...and bored curiosity.
I tried to run my MWS on 0.28g today but even with the hop “off” they were skying at 30m!
Purchased a bottle of Vorsk 0.32g (not my first choice but was a small bottle for £10) and with 4 clicks of hop I was hitting peeking heads at 45m+ ?