Loose screws / Changing POI

[Kegbelly]

Been doing a bunch of shooting the past couple weeks, a couple days ago while shooting I noticed my POI steadily dropping. Turns out all 4 screws that attach the scope rail to the bow had worked loose, letting the scope rail tilt downward at the front. Blue loctited everything again and tightened. I didn't think about it at the time but when I tightened the screws I locked the scope rail at the tilted angle, so POI is now about 2" lower than it was before the screws worked loose. Should I loosen the screws back up and try to level out the rail or just adjust the scope? Kind of concerned about stripping the screws now, but also concerned that the rail is angled downward now, not sure what effect that might have on other things?

[Significent]

Kb, with all of the talk of those screws stripping, I feel your pain. If it were me, I think I'd get me the replacement screws ahead of time and replace them when you reset the mount.

On the other hand, If the mount is on solid and screwed on properly, there's probably no reason to unbolt it again. Changing the POI with the scope turrets should be simple enough as long as you have enough adjustment capacity for the required change.

I'm gonna go check the tightness on mine right now

[Normous]

I have a fix for one of your screwy issues, some better and larger 9/64 head scope mount screws that will resist stripping. If you PM me your address I will get a set (or two) if needed to you asap.

[Kegbelly]

Thanks guys, yes stripped screws is a concern, there is one that's already on the verge of stripping. I put enough Loctite on them where I'm pretty sure that one screw will give me fits.
I think I have enough adjustment left in the scope to get the POI back where it should be, but there are other factors... arrow retainer, trigger and trigger claws, all that stuff changes a little when the scope rail angle changes, that's my biggest concern. I just didn't think about that when I tightened everything back up Doh!
Norm, thanks so much! I will pm you.

[strum]

Keg,,when you say stripped are you talking about the allen..not the threads?
I say throw that cheesey allen away. get a good 3/32 tip that fits a 1/4"nut driver youll be able to get em tight and get em out when needed. or even better go with what Norrm is suggesting

[Kegbelly]

Keg,,when you say stripped are you talking about the allen..not the threads?
I say throw that cheesey allen away. get a good 3/32 tip that fits a 1/4"nut driver youll be able to get em tight and get em out when needed. or even better go with what Norrm is suggesting

Yes, the allen head is starting to strip. The threads are fine.
I will be replacing the screws with better ones soon.

[Kegbelly]

I have a fix for one of your screwy issues, some better and larger 9/64 head scope mount screws that will resist stripping. If you PM me your address I will get a set (or two) if needed to you asap.

Thanks Norm! PM sent.
Exactly what size do I need? I think I read these are 8-32 threads, is that right?
What length?

[Normous]

Yes, I have 8/32" and 1/4" long thread with 9/64 head. LMK if your supplier is out of stock and I will ship a set.
Take a stock screw with you maybe.

[Kegbelly]

Yes, I have 8/32" and 1/4" long thread with 9/64 head. LMK if your supplier is out of stock and I will ship a set.
Take a stock screw with you maybe.

Will do, thanks again!

[Significent]

Kb, when you pull those OEM screws out, do me a favor and measure their exact length with a set of calipers.

I see other forum threads here where people used screws that were 5/16" long. I believe they said the two in the back could be 3/8" but the two in the front had to be cut down to 5/16". The 1/8" difference between 1/4" and 3/8" is a big difference for something like this.

[Normous]

OEM screw - scope mount to trigger unit.
OAL is .387"
Thread is .285"

[awshucks]

Keg, you can either resight or move the mount, won't make any diff on the other things you mentioned.

This looks like a good thread for the following. Check your trigger screws next time you remove the rail from the stock. If/when they loosen.....it will take you needless effort to figure out the problem.

[Kegbelly]

Keg, you can either resight or move the mount, won't make any diff on the other things you mentioned.

Thanks, 'Shucks, that's what I was wondering about. I could probably adjust the scope but I think I'd rather level the rail like it's supposed to be.

This looks like a good thread for the following. Check your trigger screws next time you remove the rail from the stock. If/when they loosen.....it will take you needless effort to figure out the problem.

With well over 300 shots on it this is the first I've had any screws vibrate loose on it, and I do check them periodically. But I've never had the stock off of it, so it might be time to check those screws. Thanks for that tip.

[awshucks]

Hope I didn't 'jones' anybody, lol, but there's loose trigger screws 7 threads up from this one......

You have to really look close as the trigger screws loose act just like the mount screws loose, cept you can see the whole trigger assy move when you tug on the scope/mount.

I discovered it by accident after checking the mount screws which were tight. Felt like a dummy. 2 days worth scratching my head.

I read a post where a guy was worried about stripping his fwd stock screw taking the bow apart to get at trigger screws. his next move on it should be to chase the old loc-tite off the two stock/rail screws w/ a 10-32 steel nut, then re-loc-tite.

You can say I made a lot to my learning process since I've fought them all, lol.

[Kegbelly]

I saw the loose trigger thread, knock on wood those haven't came loose.
But i will be checking them.

I found some 8-32 x 1/4" Torx head screws in my spare parts, they're actually scope ring screws but I think they'll work great to replace the factory scope rail screws.
Thanks for the help, everyone!