[TheHunter]

So I got my r-hop patches and finally sanded it down with 220 so now it doesn't over hop. But I am having very inconsistent results. Sometimes it would go really far, sometimes it would go short, to the left, or to the right.

I have done the TDC mod and I'm using some nerf foam as the nub. Have any of y'all had similar results? What could I do to fix this?

Maybe it was the random gusts of wind.

 

[solarisjock]

if you read up, the roughest you can sand it with and expect to have good results is 400. I personally go 180 (if there is a lot of material to remove on the patch) 400-600-1500 grit sandpapers.

 

[TheHunter]

Yeah i read that but Lowes didnt have anything finer than 220. So I will try to find some finer sandpaper. Thanks.
Is there anything else that could be the problem?

 

[solarisjock]

If there is a local hardware store they generally have a better sand paper selection then lowes. might also look at automotive places, they sometimes have the higher grit counts.

with out knowing more about the rifle and setup it is in i have no idea what else it might be, but a not quite finished R-hop defenitly does not help

 

[TheHunter]

i found some at autozone. I will test tomorrow.
And i am using a Well MB04 with upgraded spring kit and metal trigger box.

 

[Lightbulb]

Some people put silicone oil on the paper to sand it as well. Read some more guides. There are plenty around on the web. Airsoftmechanics or his website are a good place to start.

 

[TheHunter]

Yeah and I have also read that. I have read like 4 different guides. I just didn't see what silicon oil would do, I didn't see the purpose in it.
I'm just seeing if other people have had similar problems or if it was just me.

 

[solarisjock]

that is a rather common problem when not sanded with a high enough grit.

 

[TheHunter]

I did some testing and now the bb will either go straight or go to the right, it never went to the left. This is probably because I have a stock barrel and would need a tightbore? Would the LRB mod fix this with out having to buy a new barrel? Since the bb will travel along the top of the barrel and not bounce around.

 

[Masterjuggler98]

If it is confined to the center or right then it probably isn't the quality of the barrel. Make sure your foam nub hasn't compressed too much and you have your hop arm shimmed so it doesn't have any side to side play. The silicone oil acts as a lubricant (duh) so the sand paper doesn't take off as much materal, and gets it smoother. It's like how when you sand the paint on your car to a polish you pour water on it to lubricate it. As for the barrel, like I said, it probably isn't the problem but you can always use some abrasive polishing compound like brasso to shine the inside of the barrel and make it more consistent.

 

[TheHunter]

There is no side to side play in the hop up arm. The foam nub was just put on there and I undo the hop up when I'm not using it. I don't think polishing the barrel would do anything since it is only right or center and isn't scattered every where. So I'm not sure how to fix it from shooting to the right, any other possible solutions?
It has always shot to the right even before the r-hop patch so I thought maybe it was my scope. But now it shoots center or to the right

 

[solarisjock]

maybe make sure your TDC isn't off center a tad?

 

[Masterjuggler98]

Try wrapping a layer or two of teflon tape around the r-hop and barrel, then put the bucking on. The only explanation I have is it might be moving around a bit in the bucking.

And if the TDC is a bit off it shouldn't affect anything, unless you somehow screwed it up beyond belief. If it is a few degrees off being straight, you shouldn't be seeing any problems with it.

 

[TheHunter]

Alright I will try that. I'm kinda thinking the patch is moving, but if it is moving shouldn't I get very scattered results?

 

[Cheese Man]

The patch should be glued down...

Have you re-aligned the barrel?

 

[TheHunter]

I haven't glued it down yet because I am afraid that it might not be ready to be glued. The patch might need more work.
And what do you mean by re-aligned?