Ross CR337 and Nock Low Tear

[BowhunterNJ]

Ross CR337 @ 58.60#
Trophy Taker Original Micro
Maxima Hunter 250s, 27.5" from tip of insert to nock groove.
Fletchunter Release
Vibekiller string suppressor

ATA 37" exactly
Brace Height 7.75" exactly
Timing timed per Lawler spec with bottom of bolt aligned with limb

Rest set with bottom of arrow shaft aligned with the center of the berger button hole. (per Lawler, also tried it with the bottom of the shaft at the bottom of the berger button hole, same symptom)

Nocking point is near center, verified with a clamped and leveled bow. I would say it is about 1/32-1/16" high.


Result: Nock Low about 1.25" @ 5 feet

Thoughts?

[red44]

D-loop?

[BowhunterNJ]

Yes, sorry D loop.

[red44]

If it were me, I'd try small adjustments in the cam orientation via cable twist/untwists. Just keep track of them, you can always put it back.

[candless]

did you try bare shaft tuning at 10 yards?

[BowhunterNJ]

I haven't tried any group or walk back tuning yet.

The problem is...there is no way that arrow is coming off remotely clean with a 1.25" low tear. If it were .25" or .50"...OK, I'd deal with it...but over an inch...something isn't right.

Anyone know what the "normal" range of nocking point is for a Ross CR337? Center? 1/8" high? 1/4" high? 3/8" high? 1/2" high? More?

[candless]

90 deg, check for fletch contact

[BowhunterNJ]

Bare shaft paper tuning, no fletching to worry about.

[candless]

Bare shaft paper tuning, no fletching to worry about.

I must have missed you mentioned that...where is your arrow in relation to the berger holes?

[BowhunterNJ]

Everything is set per Lawler's site.
Bottom of the shaft is lined up with the center of the berger button hole.

[candless]

have you tried 90deg yet? do you have another rest to try? nock pinch? follow thru? i'm grasping now...

[NMP]

What does the tiller look like to the line between the axles not to the string? You may try swapping the limbs around. I have seen some bows that would do the same thing when the stronger of the two was on the top.

[candless]

What does the tiller look like to the line between the axles not to the string? You may try swapping the limbs around. I have seen some bows that would do the same thing when the stronger of the two was on the top.

or lower the poundage on the top....right?

[NMP]

I have actually never seen this issue with the weaker limb on top for some reason. Bow companies used to specify that if you have a limb weaker than the other the strong one should go on the bottom. I dont know exactly why it happened like that but it has on some of mine.

[BowhunterNJ]

I'll check the tiller via ATA tonight after work as well!

[BowhunterNJ]

OK, I verified the limbs were bottomed out, backed them out a turn and then back to bottom. Scaled the bow at 58.64#...OK, so I gained 4 hundreths of a pound!

Also checked brace height with a string tied axle to axle...both were identical...give or take the width of a ruler line (1/64"?).

Some good news...I started at just a smidge under 5/8" above the bottom of the berger holes and actually got a nock HIGH tear. So it appears with a little more smidging...probably around 1/2" above the bottom of the berger holes...I should get a clean tear.

I had worked that way before...but visually it seems abnormally HIGH...like I can visibly see with the rest pushed up it is HIGH and the shaft is angled downward. You still consider that normal? I can't recall ever shooting with a nocking point that high, but this is my first stint with a Ross.

[red44]

You got me a little confused now, which is higher, the rest or nockpoint, which end of the arrow is pointing down?

[BowhunterNJ]

Nocking point is higher than the rest.

Tip of the arrow is pointing down while bow is at rest and the arrow rest is in the UP position (drop away, finger holding it up)

[stixshooter]

Mine tunes higher on in the back at the nock it looks about 1/4" past center, It looks too high at rest but tunes good both my Ross bows tune that way and so does my son's

[red44]

OK got ya, is it alot higher or just a 1/16 or 1/8th? If that, I'd say your not to bad, time for group tuning, or BH/FP comparison, or whatever you prefer.

[BowhunterNJ]

Around 1/4" high from a bow square sitting flush on top of the rest in the up position...it looks high to the eye, but maybe FPs and BHs will tune OK.

I just finished serving the bowstring where the string suppressor is.
Also served in the peep, the dropaway rest cord, and a little D loop security.

I'll probably do a little shooting on Saturday morning. Tomorrow I'm going to get the Spot Hogg sight setup, axis adjustments made, etc.

Making progress :)

[candless]

glad to hear your making progress...