Skip to comments.FR Gun Club: Sighting In A New Rifle
Posted on 12/08/2008 9:26:18 PM PST by Neil E. Wright
1. Shiny new, high-powered deer rifle..............$ 1,200.00
2. Quality, high-powered scope........................$ 550.00
3. Bore sighting device.....................................$ 140.00
4. Hospital Visit......................$ 4,893.00
5. Forgetting to remove the bore sighting device prior to actually shooting? Disastrous
If he actually got hit in the eye, that ER visit is going to cost a lot more than $4800. Poor devil.
Shooting glasses - $6.00
looks like it could be made into a lamp stand.
Check this out!
There are several other pictures of barrels blown out like that from bore sighters. I popped a squib in an Uzi because I didn’t check the barrel after the shooter said it failed to fire. It was 100% my fault for not inspecting the barrel of a weapon before I pulled the trigger.
I really need to get this thread going as a daily again. If anyone is interested, don’t be bashful. The criteria for regular posting is not extensive knowledge, it’s passion. Remember the old line, “Private Joker is silly and ignorant, but he’s got guts.”
Guts is enough. Contact me if you want to keep the Free Republic Gun Club going. The need is obvious for the coming administration.
For the life of me, I don’t know why people bother using such devices with a bolt action rifle such as this. These pics are not the first rifle blow-up I’ve seen using a collimator.
I don’t own one of the wretched things, never have, never will.
Here’s all anyone needs to do to bore-sight a rifle to get it on target.
Put a target downrange at 50 yards. I prefer a round, black bull on a white background. Use a 25yard pistol target or a 100 yard high power target. Just make it round, black-on-white.
Go back to your bench. Set up the subject rifle on sandbags or on a rest. Pull the bolt. You read that correctly, just pull the bolt out of the rifle.
Now, get behind the rifle and sight down the bore. Look to see if you can see the target down the bore of the rifle. If you can’t, move the rifle until you can. Get the target as concentric as possible with the bore by adjusting the setting of the rifle on the sandbags or adjusting the rest holding the rifle.
When you have the rifle aimed so that the bore is concentric with the black bull of the target, carefully put your head near the stock, but not touching it (or touching it only slightly) in the manner you’d look through the riflescope while aiming. DO NOT take a grip of the rifle with your hands. See where the crosshairs are laying. If they’re not on the target, make a note of how many inches high/low and left/right they are. If you have 1 click=0.25” at 100 yards, remember that you’re going to need twice as many clicks to adjust out what you see at 50 yards.
eg, if you have a 1 click = 0.25” @100yards, you need two clicks per 0.25” at 50 yards, because 0.25” at 50 yards is 0.50” at 100 yards.
Dial out the error on the scope. Get the crosshairs right on the center of the bull, then stand back and sight down the bore again. Repeat until you get the two to agree. When you’re done, dial in about 1” of elevation gain to account for trajectory between 50 and 100 yards. Put in the bolt and send a group of three rounds downrange, and start fine-tuning the zero.
I’ve used this technique on everything from .375’s down to .17HMR’s.
I should add that the scope is a Nikon Monarch and it will doubtless render years of outstanding service. Shameless plug.
I only thought stuff like this happened in the Houston area !!!
If the guy was wearing eye protection, he got off lucky, even if his handsome good looks are a bit impaired. I suspect he was sprayed by hot gas, and vaporized aluminum, lead, and jacketing. It looks like there's a piece of metal embedded in the scope lens, but it's hard to tell if any of the gas also blew back through the bolt body.
The rifle looks like a Savage 110. It's a tribute to modern design that the bolt held, otherwise he'd be on a slab in the morgue.
I use laser bore sighters and optical collimators, but on as a check on my work. Even then, I do a quick check of the bore when I button things up. I leave that stuff at home when I head to the range with live ammo.
Indeed , that individual better be in church this week at least !
This method is the old-time tried-and-true.
Me, I never say the need for a $100 gizmo to boresight a rifle.
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