Bullet drop on 10/22

Status
Not open for further replies.
I zero'd at 50 and then held on same target at 100 and measure the distance down to POI.. I did not touch knobs after zeroing at 50... I am shooting silhouette targets so they are big.. I just draw small circles on them and shoot for those... On initial zero it took about 10-15 clicks to get zero'd at 50

Jim, that's one thing I am going to do if the same results occur...

I am not a professional at mounting scopes so its highly likely I am at fault here... I feel like I am capable though...
 
I had a problem with a scope I mounted on a Savage 270 a while ago. The screws on the rings were ok but the screws on one of the mounts came loose and I could not get consistant hits with the rifle. It almost drove me insane trying to figure what was wrong.

You may want to lock-tite the screws on attaching the rail to the receiver just to be sure, they are small. It will save wear and tear on your nerves.

Jim
 
Sounds more like a problem with your scope. Try this, zero at 100 yards then go to 50 yards and see the results. I doubt you will be 19 iinches high at 50 yards.
Click to expand...

Even if his ammo really is dropping 19" at 100 yds and he zeroed at 100 and shot at 50, of course it wouldn't hit 19" high.
 
I should be able to learn something by zeroing at 100 and seeing where the POI is at 50 yards though right? Assuming I still have the problem once I get back on the range..
 
A 100 yard zero will only put you about 2" high at 50 yards. Less room for error when introducing your 2" 50 yard group. Try the Winchester.
 
I was unable to mount my new scope due to having medium rings and a 50mm objective lens so there were some clearance issues.. However, I went back with the same scope I had previously (Nikon Prostaff 4x12-40) and put it on a Weaver base instead of the factory Ruger base.. Went to the range today with Winchester and Federal ammo and fired 5 shot groups. The black circle is 1.5" in diameter.. I stopped adjusting the scope at W6, which was the 6th group with Winchester.. After I had shot all the outside circles, I moved to the 50 yard station and shot the middle circle on this first target pictured...

photobucket-2223-1361477673721_zps860c3e01.jpg

Then I put up a new target and messed around shooting at 4x and 12x magnification at the 50 yard station. I never adjusted the scope from the 25 yard zero.. There was maybe a 5mph wind blowing from left to right as you look at this target. Not much at all really...

photobucket-42696-1361477672529_zps07382393.jpg


So, I backed out to the 100 yard station to see what kind of drop I was going to have... Well, it took me a few groups to figure out I was still having 19" of drop, but once I found where I was at I fired a final 5 shot group (shown below)

photobucket-30816-1361477671340_zps9731119c.jpg


I'm not sure what to think.. I'd love to send it back to Ruger, but I'm a little skiddish to ship my firearm right now.. I'm not sure how they would approach this.. In hindsight, I should have bought a regular 10-22 and built it myself instead of getting this target version... But regardless, this thing isn't much of a target rifle with behavior like that... Thanks for any advice???
 
You don't happen to have a chronograph do you or a friend that has one?
 
To eliminate the scope mounting as a variable, have you tried shooting at the same distances with the iron sights? Looking at a .22LR trajectory chart - http://www.guntalk-online.com/images/22hv_plot2.gif - the bore is angled UP to cross the line of sight at about 45 yards, and bullet drop from there should only be about 5 or 6 inches at 100 yards. I just wondered if the scope is mounted slightly DOWN angled, so the bullet never rises above the line of sight, but instead barely reaches it a 50 yards. Or whether that would make any difference, if it hits Point of Aim at 50 yards, anyway.
 
Well, I've been having some problems with focusing my eyes and I went to the eye doctor today and found out I'm farsighted. I have what they call latent hyperopia.. It can be corrected with glasses, but my right eye is the worst and thats the eye I use to look through the scope.. I still don't think it answers the bullet drop question, but it I'm sure it affects my ability to look clearly through the scope.. I called Ruger today and got an RMA # so I'm gonna pull the scope, box it up, and ship it out.. Thanks for everyone's help and I'll let you know what they say...
 
Cowtown;

I normally zero my .22lr's at 100 yards. With ammo that chrono's at 1200 fps, midrange (50 yards) is approx 3.5" high. This holds true with several guns and various ammunitions. Yes, there will be small variations from gun to gun and ammo to ammo, but it's a good rule of thumb.

I don't know what's wrong with your setup, but something's out of whack. I'd start doing a methodical trouble-tree rundown of the variables & figure out just what's causing the situation. Trouble is, finding .22 ammo right now is getting to be an adventure.

900F
 
Thats the problem... I've got a bunch of ammo for this gun and was planning on shooting it until things calm down... Bummer...
 
That is strange. But it shows a consistant degrading of accuracy as you go out further.

Could be something with the crown or the rifleling in the barrel? Don't know,

Jim
 
Just to update this thread... I sent the rifle back to Ruger and they called today stating that they were going to replace the rifle due to the scope base threads being stripped out. Although I don't believe the threads were stripped, I kinda told the lady that I would be happy with that. So hopefully, I will be shooting again here in a couple weeks...
 
Sight height above the bore line can do things like that to your ballistic table "facts" if you don't allow for the difference in scope mount height.

Iron sight height is usually 1.5", and scope height is usually 2.5" above the bore line in default ballistic program settings.
Click to expand...

Really that much higher? I measured a scoped rifle from center to center (bore/scope) and it was about 1.75"
 
Ruger replaced the rifle with a "new" rifle and I'm still getting the exact same results.. 19-20" low at 100 yards with a 50 yard zero... I really like the feel and look of this rifle, but I want it to be a shooter.. I still have some more testing to do with different ammo but I cant help but see the same results coming from all of it... I was really hoping for a good 10/22 experience, but it has been all but one... What should I do?
 
The only thing I've not tried different on this rifle is another scope... I know anything is possible, but do you really think this could be the problem?
 
Cowtownup;

Here's my suggestion. Mount a new scope on the new gun. Try to use a "known" scope if at all possible. In other words, one that you know to be good glass & if at all possible one that most of the rest of us know too. A Nikon 4X rimfire would be ideal.

Then, get the gun zero'd at 25 yards with a known ammo. CCI Mini-mags would also be ideal. Then, move a new target out to 50 yards, and change the scope so you are 3.5" high at 50 yards. Then, put a new target up at 100 yards. You should be very close to zero'd at 100 yards.

Use a solid rest, preferably with bags both front and rear. Try to take yourself out of the equation. The only thing you should be doing is sighting through the scope and tripping the trigger, not steadying the gun.

900F
 
Im withCB900 , take the shooter out of the equation,
My 10/22's with factory triggers,and aftermarket green mountain barrels,can keep groups
of less than an inch at 50-yards, 1.5" at 100 yards from solid bagged benchrest,
all with CCI mini-mag 36grHP's
No offense against you cowtown,but it may be the shooter, I have had people tell me ther is something wrong with a rifle,and pick it up for the first time ever,and shoot tight groups,,,
Work on taking the human factor out of the equation,,
Do you drink alot of caffeine ? are you COMFORTABLE and relaxed in your shooting position ? Just a few things to think about ...
 
Thanks for the responses and I am certainly going to try a different scope.. I'm not a great shooter by any means, but we are talking 19" low at 100 yards with a 50 yard zero... I'm not that bad.. LOL.. My shooting bench is not the greatest, but I do shoot off of bags and am certain that it would not be the cause of 19" of bullet drop at 100 yrds.. I'm going to try what CB900 suggest and get another scope and I'll post the results from that..
 
Status
Not open for further replies.

Similar threads

T
  • Locked
  • Poll
10/22 and scope question.
Replies
23
Views
863
Maverick223
Maverick223
A
  • Locked
Need help with .308 projectile drop
Replies
15
Views
2K
BoilerUP
B
B
  • Locked
Modified 10-22's
Replies
6
Views
502
biscuitninja
B
stchman
  • Locked
Range report Ruger 10/22 Tactical.
Replies
9
Views
725
cthulhufan
C
J
  • Locked
Mounting a Nikon scope on a 10/22
Replies
4
Views
299
Jefe
J
Back
Top