Question about Tasco 3-9x40 World Class Riflescope 30/30 Reticle scope Clam Pack WC3940MD

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Moves farther than a quarter of an in at one hundred yards and does not stay sighted in

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Probably needs to be taken apart and the interior nees to be re adjusted

Posted on Sep 14, 2009

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What power to use for 204 26gr. varmint grenade bullet an the emount of grs of power.


Be careful with high velocities. I saw 45 gr .224's not making it a hundred yards, disintegrating in flight.

Jun 06, 2015 | Optics

Tip

Sight in your scope


I have given this tip to a dozen people this week. It will save you a ton of ammo. If you don't have a bore sighter of access to one, get a big cardboard box, cut V's in the top that the rifle will sit in nicely, remove the bolt. Find a target, 100 yards away, sight down the bore, tilt box, rifle to target, make sure it doesn't move, adjust scope to the same target. check to see if the rifle is still on, then check the scope again. This will put you on paper at 100 yards.

on Feb 17, 2010 | Optics

1 Answer

How do I adjust a ladder sight for 100 yards on a 1873 lever action carbime


Move the rear sight in the direction you wish to move the bullet impact.

Feb 27, 2015 | Optics

1 Answer

When is best time to sight in ATN 390?


At night. You can sight in the 390 during the day in simi-darkness with a day light lens cover over the front of the scope. (the snap cover has a small hole in the center for look see during the day) 50 foot room with a target, bench rest and a rifle vise. You'll also need laser bore sight Figure you rifle ammunition ballistic and how many yards before it starts to drop. Set the 390 reticle to the red do on the target one or two inch above. Dead center set up will give you about two hundred yards on center... approx. Now you know this is a static test or sight in. During night because of some distortion and noise from the scope. stewbison

Feb 17, 2011 | ATN Aries 390 Paladin Weapon Sight

1 Answer

At 200 yards the scope is printing 5 inches to the left but all the way out to 150 it is right on.


are you trying to shoot farther then the rifle/bullet can shoot to be dead on? 5 in out in 50 yds is a very long way out? could this be down to bullet drift

Nov 10, 2010 | Nikon Optics

1 Answer

Having trouble sighting in at 100 yards using the center crosshairs off of a led sled shooting rig. groups are barely 14 inches now and it was shooting well a few months ago. please advise Travis


Something is wrong with the mounts, they have to be loose or something. I can hit better than that with iron sights. Unless the internals of the scope are loose. You have it mounted in a sled? Is it bolt action? Take out the bolt, sight down the bore at the target and make it stay there, peek through the scope without moving the gun, The cross hairs should be on the target, if not, you are off to start. Setting up your rifle like this will put you on paper at 100 yards. Check it out.

Aug 09, 2010 | Zeiss Conquest Riflescope w/Rapid Z 1000...

2 Answers

I just purchased a savage .17 HMR with a cabelas pine ridge 3x9x40 tactical scope and I'm having problems siteing it in. It is shooting aout 4 inches low regadless of adjustments I try and make.


A quick and easy way to bore sight your rifle, if it is bolt action only, or an AR, mount the rifle in a cardboard box with cutouts so it will sit without tipping, remove the bolt and sight down the bore at a target 100 yards away, a mail box, or the corner of a building, make sure the rifle doesn't move, then peek through the scope, it should be seeing the same target your bore is seeing, if not, adjust your scope to it, if it won't travel that far, shim the front with pieces of 35 mm film. then check it again, if you can get it to stay there, it will put your bullet on paper at 100 yards.

Mar 07, 2010 | Cabela's Cabelas Pine Ridge 3 X 9 X 40...

1 Answer

Umm ok im new to sighting scopes i usally dont use scops for deer hunting but this year i am shooting up to around 100-450 yards...well i can sight one in but how do i shoot at a deer at farther ranges...


Learn your round, the key to long shots are in the bullets you chose. How much drop out to 400 yards. Shooting a 22 LR at 100 yards will teach you how to factor in for bullet drop. Most 22's will drop 6-8 inches out at 100 yards, then you have to deal with the wind, pratice with a good 22. Now on to your scope, if you have say, a 30-06 sight it in at 4x dead on to 125 yards. you will be high at 60 - 75 yards and low at 200 yards. Sight it dead on at 150 you will shoot high at 100 yards. so on so no. Best is dead on at 150., w/4x. Leave it a 4 power till you need more. Now turning up the power will move the point of impact a bit you have to learn how much by doing (pratice), shoot out there to see what she does, and then you know. Then you have to deal with a cold gun, she will shoot different cold. The key to a good clean kill is to know your gun and how she shoots, where, when, cold, hot, wet, dry. Low light, bright light even will make a difference how you see the cross hairs where on the target. Next, your cross hairs have a built in range finder, they have a wide line that tapers down to fine, this is a good way to tell how far away something is get a paper plate and paint it red. put it out at 100 yards that is a good kill zone for a good sized deer. Look at the plate through the scope and judge your spot for 100 yards. 4x, 6x, 9x. you then can guess your distance to deer by looking at the cross hairs step down. Deer chest is ruff the same size as the plate. Good hunting, I want to see a picture of all you take this year.

Oct 20, 2009 | Bushnell Banner 3-9x40 Riffle Scope, Matte...

1 Answer

Windage and elevation adjustment all over the place


Sounds like you want to "re-sight" in your rifle. Make sure mounts are okay and tight. Look down barrel and then thru scope and eyeball windage and elevation adjustments so the scope seems to be fairly in line.

Clean barrel if it needs it.

For basic sight in, start at 25 yards with a large(3 to 4 feet) cardboard or wood backdrop around target (bullseye). Fire at target. Once done, look through scope and position rifle such that the shot mark you created is dead zero. Hold rifle very steady and you or buddy move windage and elevation adjustments until scope moves dead zero back toward original target (bullseye). Fine tune from there. Air cool rifle between rounds. Once dead eye, fire another round or two to check grouping. Check your ballistics (sometimes on ammo box) to see how height at 25 yards affects your desired dead on target (100 yards, 150 yards, 250 yards etc.). Adjust accordingly. Example: you may need to sight in at an inch high at 25 yards, depending on your dead on target distance..

Always remove sling from barrel when sighting in.

Try to sight in at similar temperature as you intended shooting temperatures, if possible.

If not black powder, avoid cleaning barrel between sight in and hunt/competition unless you note bad buildup inside.

If you change ammo, understand that that may affect performance. Once a preferred ammo is found, some even try to buy a decent quantity with the same lot number on the boxes if storage allows for such.

May 02, 2009 | Optics

1 Answer

Crosshairs on pentax 4.5x14x42 don't move


With modern rifle scopes the crosshairs do not move.They are designed so that the crosshairs are always centered.I have not seen a scope with crosshairs that move for about 40 years.If your scope has 1/4 minute clicks, then the strike of the bullet moves 1/4 inch at 100 yards for every click.1 inch for 4 clicks and so on.If you rifle shoots 6 inches high at 100 yards you should turn it down 24 clicks to strike dead on.Many hunters and shooters adjust their scopes to strike 1 1/2 inches high at 100 yards.Then it will be accurate to about 300 yards without further adjustment.

Feb 15, 2009 | Pentax 4.5X-14X 42mm Pioneer Matte Rifle...

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