Some here may remember my complaining that my 460 shot some 18-20 inches low from an optically centered scope at 17 yds and how I had to shim BOTH rear ring and dovetail about 1/8 inch to get zeroed.

Well, after reading numerous droop posts, I just said the hell with it, took the gun out to the barn, set up a tall step ladder, put the gun receiver side down on one step with lots of padding, threading the gun through both sides of the step ladder, got inside the ladder and put all my weight on her. I didn't even take off the scope because I had enough room to put the step right where the rear sight had been and clear the front objective by an inch or more. I sighted things before I started, put all my weight on gently, sighted her again, not quite enough, so I put her back and bounced gently a couple of times, and voila! DROOP GONE!!! (BTW, I weigh 185 lbs.)

Not real scientific, I admit, but it worked perfectly and took all of 5 minutes. I removed the dovetail shim and left in the rear ring shim, sighted her in, (required 1 and 1/2 turns of elevation down from where it was, and a little windage change) and after a few more minutes was shooting .5 to .875 groups at 30 yards. Now I'm back reasonably close to optical center on the scope and my clicks work normally.

SO TAKE THAT, DIANA, MAYER, AND GRAMMELSPACHER!!!

(?emoticon with tongue out doing rasberry?!!)

Happy Shooting,

Duncan


P.S. I AM NOT RECOMENDING THIS UNLESS YOU ARE FRUSTRATED ENOUGH TO RISK BREAKING YOUR GUN...THERE ARE TOO MANY VARIABLES...I TAKE NO RESPONSIBILITY FOR YOUR ACTIONS!!!!!!

sick Duncan, but effective. now 185 lbs. by Duncan against 8 lbs. gun (gun abuse?)

you took 5 min. of barrel droop with this method, it is barbaric, I mean Neanthertal. LOL

guess you will have to figure 20, 25 or 30 yards POI, thought about that? with a bent barrel, because you bent it the other way (UP)

warren

PS: LOL

Hey Duncan, Tim here. Was just the other day talking to Warren about this very subject. We got side tracked onto many other issues. I for one just cringe when I hear,whack it w/a 2x4or 4x4! But I now know it is done by some w/reported good results. No Ill just stick to my tried & true shimming under the rear mount,line em up baby! Ive shot before w/a bent brl./ect. did not work for me! 185 lbs. Duncan? man Im just funnin around,my old ass 150 cant compete! (not enogh #lbs.)LOL. If I run into a prob. I cant figure out on my own,I just press #1 on my speed dial, Warren is always willing to help me. Good shooting Duncan,& dont fall off that ladder!! Tim.

Soooooo.....did I bend the barrel or did I UN-bend the barrel???????

I prefer the latter.

I didn't think to mention in the first post that before I did this I used a computer program to analyse the lines of force and vectors to 14 decimal points and came up with 185.02386 lbs applied to two points 15.838309 inches on either side of the front screw hole on the rear sight mounting area for 7.23453 seconds would bend (sorry, UNBEND) the barrel 0.11869 inches at the muzzle.

AND THAT'S EXACTLY WHAT HAPPENED, FOLKS

Duncan


PS, According to calculations, I had 90(!) minutes of angle droop including the 2" scope height before I started....and THAT, folks, is a REALLY preposterous amount of droop....but no more!

Warren, for a guy that is so against me, we may have in common more that you realize.
Dave@vbch

Ps. Where were you stationed in Germany?

I give you a lot of credit Duncan. I don't have the guts to bounce on my guns like that Good for you.

Diana 350 Mag .22
Hammerli 850 .22
A few Crosman CO2 & Pump .177

Hey guys Tim here, Im new to computers & interaction w/my new friends here. I may be a dumb redneck from S.C.,,But I am a pretty good judge of character,,I have made some good friends here for sure! Alot goes on behind the posts here. The E-Mail &phone calls keep pace w/ the posts Im shure! Dave,Ill talk to you monyana,(check your mail)LOL! Give my best to M.Z.,,He posted again after my redneck ass ran him off!!LOL. Sorry Russ, as afellow moderator maybee you will let this slide? Tim. & remember: Its 30% gun and 70% enjoyment we all share as brothers of this great hobby/(airguns). Tim.

Tim/nt.

Upon re-reading my post, I thought it might not have been obvious to all that in order to exert my weight on the barrel, I was HANGING from the gun inside the stepladder. I held on to the upside down stock just ahead of the trigger guard and to the front sight with the cocking arm out of it's detent. This is what allowed me to exert just the force I wanted to the area of the (removed) rear sight by slowly relaxing my knees until my toes were just touching the floor. I actually removed the gun and eyeballed the barrel several times before I "bounced" on it by relaxing more quickly, which finally got the needed amount of movement, which really only was about 0.135", just over 1/8 inch. It turned out that aligning the top of the stock along the right side with the indented part of the front sight between the barrel and the cocking arm detent was just right to remove most of the droop. I didn't feel the need to test by shooting, it was so easy to eyeball it.

The other thing about the way I held it was that there was very little danger of the gun twisting in my hands...the whole procedure was much more controlled than the way I made it sound, even though really low tech. (My second post hinted at that, even though total BS.)

I really am an engineer, honest!


Duncan

Duncan, many people have got the droop fixed by hitting the barrel with a 4 x 4, vise grip method, hitting the front against the concrete protecting the barrel with tape, etc.

all these methods eliminate the droop and you do not have to shim or get special mounts to compensate for the droop

warren

PS: how do you think TUNER's get rid of barrel droop, with a magic wand?

and remember "it's 30% the gun and 70% the shooter"