What's your scope height?

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I am sure Dave was not hijacking your thread. He is always a nice and informative responder. Perhaps you might be a little more open to what he asked. It seems quite reasonable especially since you did not ask a question rather you gave some information and we were left to surmise where you were going. Can you restate your question? 

No offense intended . 
 
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I am sure Dave was not hijacking your thread. He is always a nice and informative responder. Perhaps you might be a little more open to what he asked. It seems quite reasonable especially since you did not ask a question rather you gave some information and we were left to surmise where you were going. Can you restate your question? 

No offense intended .
Click to expand...

What's the topic sir? That's a question right? Then I went on and added my equations right? Did I ask for anything else in the thread? No sir! There's always 1 in the bunch who's the jailhouse attorney. No offense taken!
 
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Nowhere even remotely close to 3.46"
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I thought it was high but that's what I got. 

These are my numbers. Objective OD 57/28.5 shroud OD 33/16.5 + 43mm Distance between Objective and shroud =88mm 3.46"

Was my formula correct? Maybe that's where I fudged!?

1582417956_1309966755e51c824695891.45479100_20200222_152422.jpg

 
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Your numbers look good. The reason mine are much lower is because you are using a much larger objective and have a higher mount. I am only using a 33 to 40 mm objective and have lower rings and mounts. I actually go to a ballistic calculator (Shooters Calculator) and run some numbers to decide how high I want to mount my scope to get what I call a flat spot. The flat spot is an area between two zeros and not having the projectile be off the line of sight more than a meas which is appropriate for the game I am hunting. When I set up a 22 cal rimfire for squirrels I use 1.75" for std vel. and 1.6 for high vel. This puts the bullet less than .25" off line of sight between 20 and 50 yards on std vel and 20 and 55 yards on high vel. My Mrod is 1.9 inch off of bore and is zeroed for 32 yards. With this I can shoot from 15 to 35 yards without any holdover or under. If I were shooting longer distances which it looks like you do by the pics of your rig (which is very impressive I might add) I would have a setup more like yours.
 
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Your numbers look good. The reason mine are much lower is because you are using a much larger objective and have a higher mount. I am only using a 33 to 40 mm objective and have lower rings and mounts. I actually go to a ballistic calculator (Shooters Calculator) and run some numbers to decide how high I want to mount my scope to get what I call a flat spot. The flat spot is an area between two zeros and not having the projectile be off the line of sight more than a meas which is appropriate for the game I am hunting. When I set up a 22 cal rimfire for squirrels I use 1.75" for std vel. and 1.6 for high vel. This puts the bullet less than .25" off line of sight between 20 and 50 yards on std vel and 20 and 55 yards on high vel. My Mrod is 1.9 inch off of bore and is zeroed for 32 yards. With this I can shoot from 15 to 35 yards without any holdover or under. If I were shooting longer distances which it looks like you do by the pics of your rig (which is very impressive I might add) I would have a setup more like yours.
Click to expand...

That's a .30 Vulcan I have so there isn't going to be a flat spot unless I crank up the fps and that's not happening 878fps is more then enough 
 
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ALL my convention Rifles .. Not Pups run from @ 1.7" to @ 2.3" with the Pups @ 2.5" to 2.8" center of bore to center of optics. Lower the better is what i believe correct.
Click to expand...

Check out that link very interesting read
Click to expand...


Very familiar with all things "CANT" .... my reason is that of trajectory profile and being a "Hunter" Field target shooter ( 8 State, Gran Prix and a National championship win ) where the amount of correction be it hold over or clicks is far less with a low scope position over a high one IMO. The gains had to get a somewhat flatter profile at distance does not make the sacrifice of critical short distance correction worth it. Again to me.



Again neither is right or wrong, just understand each has advantages or disadvantages pending where one places the priority in whats required in close and out far with each height extreme used. Somewhere in the middle is a good compromise which is not such a bad idea.



Scott S 
 
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I am sure Dave was not hijacking your thread. He is always a nice and informative responder. Perhaps you might be a little more open to what he asked. It seems quite reasonable especially since you did not ask a question rather you gave some information and we were left to surmise where you were going. Can you restate your question? 

No offense intended .
Click to expand...

What's the topic sir? That's a question right? Then I went on and added my equations right? Did I ask for anything else in the thread? No sir! There's always 1 in the bunch who's the jailhouse attorney. No offense taken!
Click to expand...


LOL. Thanks for the chuckle.
 
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ALL my convention Rifles .. Not Pups run from @ 1.7" to @ 2.3" with the Pups @ 2.5" to 2.8" center of bore to center of optics. Lower the better is what i believe correct.
Click to expand...

Check out that link very interesting read
Click to expand...


Very familiar with all things "CANT" .... my reason is that of trajectory profile and being a "Hunter" Field target shooter ( 8 State, Gran Prix and a National championship win ) where the amount of correction be it hold over or clicks is far less with a low scope position over a high one IMO. The gains had to get a somewhat flatter profile at distance does not make the sacrifice of critical short distance correction worth it. Again to me.



Again neither is right or wrong, just understand each has advantages or disadvantages pending where one places the priority in whats required in close and out far with each height extreme used. Somewhere in the middle is a good compromise which is not such a bad idea.



Scott S
Click to expand...

Your numbers look good. The reason mine are much lower is because you are using a much larger objective and have a higher mount. I am only using a 33 to 40 mm objective and have lower rings and mounts. I actually go to a ballistic calculator (Shooters Calculator) and run some numbers to decide how high I want to mount my scope to get what I call a flat spot. The flat spot is an area between two zeros and not having the projectile be off the line of sight more than a meas which is appropriate for the game I am hunting. When I set up a 22 cal rimfire for squirrels I use 1.75" for std vel. and 1.6 for high vel. This puts the bullet less than .25" off line of sight between 20 and 50 yards on std vel and 20 and 55 yards on high vel. My Mrod is 1.9 inch off of bore and is zeroed for 32 yards. With this I can shoot from 15 to 35 yards without any holdover or under. If I were shooting longer distances which it looks like you do by the pics of your rig (which is very impressive I might add) I would have a setup more like yours.
Click to expand...

That's a .30 Vulcan I have so there isn't going to be a flat spot unless I crank up the fps and that's not happening 878fps is more then enough
Click to expand...

I have never seen a rifle that did not have a flat spot. It may only be ten yards but it will be there. It will simply be longer based on the scope height, riflle trajectory and the game hunted. When hunting squirrels the flat spot is calculated differently than when hunting ground hogs. I ran your numbers using .037 as bc and 45 grains as weight and foung that if you zero your rifle at 50 yds, you will have a flat spot of no more than .49 inches above or below your line of sight from 20 to 55 yards. This flat spot would be ok for ground hogs but would not work for squirrels for many hunters. As motorhead said neither is right or wrong we just have to decide which works best for our particular use.
 
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ALL my convention Rifles .. Not Pups run from @ 1.7" to @ 2.3" with the Pups @ 2.5" to 2.8" center of bore to center of optics. Lower the better is what i believe correct.
Click to expand...

Check out that link very interesting read
Click to expand...


Very familiar with all things "CANT" .... my reason is that of trajectory profile and being a "Hunter" Field target shooter ( 8 State, Gran Prix and a National championship win ) where the amount of correction be it hold over or clicks is far less with a low scope position over a high one IMO. The gains had to get a somewhat flatter profile at distance does not make the sacrifice of critical short distance correction worth it. Again to me.



Again neither is right or wrong, just understand each has advantages or disadvantages pending where one places the priority in whats required in close and out far with each height extreme used. Somewhere in the middle is a good compromise which is not such a bad idea.



Scott S
Click to expand...

Your numbers look good. The reason mine are much lower is because you are using a much larger objective and have a higher mount. I am only using a 33 to 40 mm objective and have lower rings and mounts. I actually go to a ballistic calculator (Shooters Calculator) and run some numbers to decide how high I want to mount my scope to get what I call a flat spot. The flat spot is an area between two zeros and not having the projectile be off the line of sight more than a meas which is appropriate for the game I am hunting. When I set up a 22 cal rimfire for squirrels I use 1.75" for std vel. and 1.6 for high vel. This puts the bullet less than .25" off line of sight between 20 and 50 yards on std vel and 20 and 55 yards on high vel. My Mrod is 1.9 inch off of bore and is zeroed for 32 yards. With this I can shoot from 15 to 35 yards without any holdover or under. If I were shooting longer distances which it looks like you do by the pics of your rig (which is very impressive I might add) I would have a setup more like yours.
Click to expand...

That's a .30 Vulcan I have so there isn't going to be a flat spot unless I crank up the fps and that's not happening 878fps is more then enough
Click to expand...

I have never seen a rifle that did not have a flat spot. It may only be ten yards but it will be there. It will simply be longer based on the scope height, riflle trajectory and the game hunted. When hunting squirrels the flat spot is calculated differently than when hunting ground hogs. I ran your numbers using .037 as bc and 45 grains as weight and foung that if you zero your rifle at 50 yds, you will have a flat spot of no more than .49 inches above or below your line of sight from 20 to 55 yards. This flat spot would be ok for ground hogs but would not work for squirrels for many hunters. As motorhead said neither is right or wrong we just have to decide which works best for our particular use.
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Those are fabricated numbers you submitted and not far from the original true calculations so I would say it's a wash. You really didn't prove anything different 5Yds isn't even a click worth of turret rotation! No flat spot in the graph now you can take that up with CG🤣🤣P.s. remember I stated CG reccomended a 50yd 0 intially. 25 zero is no different from 50 zero equates to same if reversed. Meaning my 25 is my 50 zero vise versa 
1582478267_14822910595e52b3bb57b205.74090158_Screenshot_20200223-121526_ChairGun.jpg

 
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You are right that there is actually no true flat spot. It is referred to by some hunters as an abbreviation for where the line of sight and pellet path are close enough to take a shot with out holdover or under which is why it is different for different size game. Each hunter sets his rig up for the game hunted and the flat spot. If I zero my 17wsm at 50 yds it is 1/2"high at 100 and I can't hold on a squirrels head in normal hunting ranges. But if I sight in at 1.25" low at 50 yards and take it for yotes that will still give me a lethal hit out to 100 yards and if a squirrel shows up I simple put the crosshairs 3/4 inch above his head and squeeze. I can do this at 1yard all the way out to 90 yards. My scope is mounted 1.75 over bore on this rifle. Now while the 17wsm is way overkill for squirrels it is nice not to have to guess hold over if one hops up on a log at 10 yards. I just hold half a head high and squeeze. I apologize for not making myself more clear when referring to the flat spot. And as far as your scope height of 3.46, with your caliber and velocity it may be beneficial to have the higher scope mount depending on your desired purpose.
 
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