Scope base question

[kevins750]

In long-range benchrest you don't want the scope real low as all you will see is the heat coming off of the barrel. That why you see strips of Mylar or Carbon fiber on the barrel held in place with Velcro dots

I haven't noticed that before, I was always in the mindset anything touching the barrel could have negative effects. Learn something everyday.

[jrpowell3]

In long-range benchrest you don't want the scope real low as all you will see is the heat coming off of the barrel. That why you see strips of Mylar or Carbon fiber on the barrel held in place with Velcro dots

The reason I'm asking is because, from my time in the marine corps, my shooting posture has definitely molded itself to the higher up sights of the m16, so I noticed when I was holding some bolt guns the other day that when I shouldered the weapon, my line of sight was not parallel to the barrel.

I think I might have to adjust my posture to adapt to the different sight level.

[ar15barrels]

I noticed when I was holding some bolt guns the other day that when I shouldered the weapon, my line of sight was not parallel to the barrel.

I think I might have to adjust my posture to adapt to the different sight level.

Indeed.

[LynnJr]

Here are two of my 1000 yard heavyguns. One is a 6 Grendel and one is a 300 Ackley. Notice how high the scopes are. No cheek weld at all.
Silhouette shooters who are always standing keep there scopes high and just use a tall comb on there stocks.
Scope height is discipline dependent.

[jrpowell3]

Here are two of my 1000 yard heavyguns. One is a 6 Grendel and one is a 300 Ackley. Notice how high the scopes are. No cheek weld at all.
Silhouette shooters who are always standing keep there scopes high and just use a tall comb on there stocks.
Scope height is discipline dependent.

No stock weld? Interesting. But I guess with a scope all you need is proper eye relief and no scope shadow

[ar15barrels]

No stock weld? Interesting. But I guess with a scope all you need is proper eye relief and no scope shadow

When the gun weighs 60-100lbs and sits on a mechanical return-to-battery rest, there is no need to touch anything but the trigger.
When you shoot a gun like that, they stock is shaped differently.

When you shoot a gun with your head on the stock, you want the scope as close to the barrel as possible.

[jrpowell3]

When the gun weighs 60-100lbs and sits on a mechanical return-to-battery rest, there is no need to touch anything but the trigger.
When you shoot a gun like that, they stock is shaped differently.

When you shoot a gun with your head on the stock, you want the scope as close to the barrel as possible.

That weighs the same as a M2HB with the tripod... So, I think medium rings for the scope I got it'll give me about an 1/8" clearance from the bottom of the scope to the bottom of the ring, depending on the model

[JMP]

The reason I'm asking is because, from my time in the marine corps, my shooting posture has definitely molded itself to the higher up sights of the m16, so I noticed when I was holding some bolt guns the other day that when I shouldered the weapon, my line of sight was not parallel to the barrel.

I think I might have to adjust my posture to adapt to the different sight level.

I'd go with what's comfortable for you. Generally, long distance shooters will have high bore height since there may be a large cant in the base, avoids mirage from the barrel, and you don't lose that much if your targets are all far. Tactical shooters will want minimal bore height as they shoot at all ranges and high scopes can be a bit goofy for short and intermediate ranges.

[LynnJr]

I haven't noticed that before, I was always in the mindset anything touching the barrel could have negative effects. Learn something everyday.

Here is a picture of a mirage shield on my 1000 yard 6 Dasher and next to it is the bottom of another shield showing the Velcro dots that hold in place on the barrel.
If you look at the muzzle you will see a Hoehn/Harrell's tuner which weighs 8.5 ounces as you see it. Any time you add weight to the muzzle you are dampening the height of the barrels whip which broadens the tuning window. Adding a heavy front sight or a heavy muzzlebrake may affect your previous load but it takes about 4 ounces on a #17 contour or larger barrel to produce recognizable results. If you go past 14 ounces you will find accuracy affected in a negative way because the barrel will be pointing on a downward slant when the bullet leaves the muzzle.
If you look at my earlier post the gun sporting the polished aluminum stock has a tuner weighing more than 3 pounds but the barrel is 1.450 straight cylinder.

[jrpowell3]

If the wide end of the scope is 2.03" wide, what height rings should I go for? I'm looking at 1.125" height rings, but I can also get 1.03" rings, but I'm not certain.

[MEGSDAD]

This might help.

http://www.mil-rad.com/scope_ring_calculator

[jrpowell3]

That's good knowledge. Looks like I can go smaller than the 1.03" rings.

[jtv3062]

Another easy way to figure out what height rings you need is to stack pennies on you rail front and back until the bell is no longer touching the barrel. Measure the the stack of pennies and add half of the diameter of the scope tube.

[jrpowell3]

I used the site MEGSDAD posted, and I should have approximately 3/8" of an inch clearance between the objective bell and the barrel(including the scope cover) using .823" rings(Badger Ordnance Standard Height).

[jrpowell3]

So, new question regarding bedding the scope base.

Are the shim kits any good or should I just do the JB Weld thing shown in one of the videos above?