WK180-C range review. Update Post #2

ZREXER said:
The quickest way to tighten up your groups is to ditch the bipod and use a proper front rest like a Caldwell and a rear bag for the stock. A bipod is good enough for varmint accuracy, but not for determining best groups on paper with various loads. My findings anyway with various rifles over the years.
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My first loads were with a sandbags. I just threw it on last night to play with, my plan tonight was to ring steel and put a lot of rounds through it.
 
Nothing wrong with accuracy testing from a bi-pod if you eliminate the handguard to gas block contact issues. I would suspect the vertical stringing is due to the contact issue, not the bi-pod. I've shot plenty of good groups off a bi-pod. I've actually found rifles that didn't shoot as good from a solid rest such as a ledad sled. Other's experiences may varry
 
jiffx2781 said:
Nothing wrong with accuracy testing from a bi-pod if you eliminate the handguard to gas block contact issues. I would suspect the vertical stringing is due to the contact issue, not the bi-pod. I've shot plenty of good groups off a bi-pod. I've actually found rifles that didn't shoot as good from a solid rest such as a ledad sled. Other's experiences may varry
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Unless I have been able to pre-load the bipod I cannot shoot as accurate groups as using 2 bags FWIW...

I see griffin86 has spiked feet on his bipod so that should allow a good bit of pre-load.
 
After 120 more rounds of American Eagle 55gr, I've figured out why the rounds were catching on the feed ramp. I was having some problems with the LAR-15 mag when it was full. Turns out the rounds wouldn't tip up when the leave the mag. With a PMAG it wasn't a problem.

Also the mag sits too low and the feed ramps stop at the extension. The last pic I couldn't get my feeler gauges in there to measure the the space between the lug and mag lip.

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One stove pipe in the first 200rds on a new rifle doesn't seem too bad.
My su16 used to do it a whole lot more often.
Judging from the side of the receiver, it was kicking them out with authority before.

How is the brass looking post firing? Looking good for a few more loads?
 
lone-wolf said:
One stove pipe in the first 200rds on a new rifle doesn't seem too bad.
My su16 used to do it a whole lot more often.
Judging from the side of the receiver, it was kicking them out with authority before.

How is the brass looking post firing? Looking good for a few more loads?
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The brass looks really good, just a little nick in it probably when it hits the upper. It throws the brass at 2:30 and in a nice pile. Looks like lefties won't have a problem with brass in their face.
 
That's nothing. Good to see it won't destroy the brass. I plan on reloading with the cost of bulk where it is. It literally cuts the cost in half.
 
I've figured out why Wolverine was having problems. They printed off a little note that said it was the bolt catch. The problem isn't a bolt catch, I've only had problems with the mag locking back with the factory mag. The problem is the Hera Mag's follower sits 40 thou low, the problem is exacerbated by the mag sitting low in the receiver. You could take some material off the feed lips, they are thicker than a PMAG.

Green mag is a PMAG, black is Hera. The measurements are taken from the feed lips to the tab that lifts the bolt catch, the smaller number the higher the follower sits.

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The last pic is of the thicker feed lips on the Hera (black mag)
 
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