Scope mount height

[25AI260]

after purchasing super high leupold rings i found out the 56mm bell on the scope doesn't clear the heavy custom barrel.. bin searching an haven't found what i want/need i even spent a half hour on the phone w/ leupold.. i thought maybe i could get a higher base mount... no go

question... is there someone that mite makes shims like a quarter inch shim is there anything like that available, that would fit between the leupold 1pc short action base mount an a 700 rem. action... ?
if so ... where would i find that... also what about screws, does anyone make long screws of that thread to the rem. action ?

thanks in advance

 

[Bobby Bailey]

Re: Scope mount hight

I would consider using a EGW picatinny base and picatinny/weaver rings. You can gain height that way pretty easy and make it easy to position the scope for eye relief.
Bobby

 

[25AI260]

HA...! thats the Ea$y route..

come on guys ya'all got noth'n.....

 

[NateHaler]

proper scope mounting, i.e. the right amount of clearance between the bell and the barrel when you're done, is all about math. Terms like "high" and "medium" are worthless; NONE of the manufacturers use the same designations for the same dimensions.

What you gotta do is measure the OD of your scope bell. Then calculate how high the combination of the base and rings plus a bit of clearance, vs. the taper of your barrel (if any) will get you what you want. Do the math. Measure stuff. All the bases and all the rings from one brand to another are different. Start with the components you have (like the scope and base), and then choose the other(s) to fit.

 

[coford]

Bobby gave you very good advice. It gives you lots of flexibility. Long screws can have a problem with stretching and adding another component (shims) to your mount will make it less secure. I use EGW picatinny bases and Burris Signature Z rings on all my rifles. Three of them have 56mm objective bells and they fit like a charm - even the ones with straight barrels.

 

[25AI260]

Oh... no doubt Bobby is on track... but i so wanted to stay with turn-ins to be capable to switch the scope to other firearms
Gonzo
looks like i may have to give in to your method for mounting... i wonder if you could possibly mention some info on where the best place to get this stuff an possibly item numbers.... you could e-mail me if you have time.

your correct NateHaler.. i should have taken the time to make measurements.. one problem was i didn't find the height measurement of any brand made bases ..
i did expect that the leupold 'super high' rings would work, not knowing they only measured 1" from the base of the ring to where it splits... 'my fault' there, but you would think super high.. well it wasn't... :<}

only some thoughts.. do they make a insert of 30mm for 35mm rings ... weld two leupold bases togther or make shims, but what about screws... mark4 set up was $ugge$ted.. that may not happen

 

[NateHaler]

I think switching a scope from one rifle to another is WAY easier with Weaver/Picatinny style rings and bases. The Redfield/turn-in style is best suited, in my opinion, for a specific rifle and leave it alone!

Shimming, etc. will be way less than ideal and will take way more time than just getting the right stuff. If you're looking to kluge something together, that's your deal. But I want my scope mount to be as perfect as it can be, to eliminate any doubt in case the rifle or ammo doesn't shoot to my expectations.

If you're concerned about cost, get an EGW aluminum base and Burris Xtreme rings int the appropriate height. Shouldn't be much more than $100 total.

 

[Lapua40X]

Guessing which picatinny rail and which mounts will do the job for you will only add to the frustration. Measure the diameter of your scope's bell, divide by two and add 5%. A 50mm bell will provide a product of 26.5mm. That's' how high the center of your scope rings will need to be, above the highest point on the barrel, for the bell to clear.

 

[25AI260]

Nate... i understand an your correct on all points... i can see what i thought would be a 'fix all' would have been just a ruby goldberg attempt.. just a matter of excepting whats best rather then what i wanted.. i'll have to think it all over again but i guess whatever i use when it gets finally set up it will have to live just there.

Lapau40x .. using your mathmatics i get 29.4,... does that include the base height i wonder
scope is NF w/ a 56mm bell... action is a 700 Remington

 

[coford]

http://www.egwguns.com/remington/

Here is the EGW website. They offer several bases and offer them in 0 to 20 MOA. If you are in doubt give them a call. I have had good luck with their stuff and they are very helpful. I use the standard F-Class base (not heavy duty) on my 6.5X284 Remington 700 and a 12X42 nightforce scope with no problems. The 6.5 has a tapered barrel and I use tall Burris Signature Z rings. My 6BR with a straight barrel and the same set up requires the Extra High rings.

 

[D-mon]

You can get a little higher using a ken Farrell base instead of the egw.
Nic

 

[NateHaler]

Lapau40x .. using your mathmatics i get 29.4,... does that include the base height i wonder
scope is NF w/ a 56mm bell... action is a 700 Remington

Ring height (measured from center of ring "hole") to top of base, plus base thickness, plus 1/8" (clearance margin I prefer) = scope bell outer diameter divided by two.

For example, on a very heavy barrel (slight taper) on a Rem 700, I mounted a Burris XTR 50mm objective scope on a Badger Ordnance 1-piece 20-MOA picatinny base and Burris Xtreme Rings in their lowest height. Clearance was about 1/8". Just about perfect.

Benchrest shooters don't typically care much about the scope bell being pretty tall over the barrel. Most of them seem to shoot free recoil. But if you're looking for optimal cheekweld, then scope height/clearance is well worth optimizing, in my opinion.

 

[25AI260]

Evolution Gun Works 215-538-1012 is closed til mon. as well as everyone else i guess i'll need to speak with someone... EGW 1-Piece Picatinny-Style Base Remington 700 has no measurement info for the base
an the ..
Burris 30mm Xtreme Ring Height: 3/4" measured from base of ring to bottom of scope tube..
the scope is 56mm bell..

yes i have a heavy barrel near straight an use for bench as well..
an use a sort of free recoil, a lightcheek on the stock

 

[NateHaler]

Burris 30mm Xtreme Ring Height: 3/4" measured from base of ring to bottom of scope tube..
the scope is 56mm bell.

Burris makes these rings in four different heights. For my example, I used their lowest, which are 1/4" from base top to bottom of the hole, so you need to add 15mm (converting to inches) to get the true "height" for the equation cited -- for any of the Xtreme ring versions. Here's the link to Burris info: http://www.burrisoptics.com/xtrrings.html

 

[25AI260]

thanks for the addy Nate... 15mm is about -/+ 5/8" ... i could have use that much on the super highs i have.. *#&*%^*)@#^%)

burris shows 4 like you said i'l call them to..970-356-1670

i found one supplier said EGW rail is a low profile design but don't know the actuall measurement

most frustrating

 

[Lapua40X]

Nate... i understand an your correct on all points... i can see what i thought would be a 'fix all' would have been just a ruby goldberg attempt.. just a matter of excepting whats best rather then what i wanted.. i'll have to think it all over again but i guess whatever i use when it gets finally set up it will have to live just there.

Lapau40x .. using your mathmatics i get 29.4,... does that include the base height i wonder
scope is NF w/ a 56mm bell... action is a 700 Remington

Yep, that's right. For selecting scope mounts, I usually lock the rings onto an alignment rod (I used a steel 1" rod with a dead center mark at the front end) and line them up on that; with the front end of the rod extending as far forward as possible so that the front rests directly above the largest part of the barrel. Then I measure the thickness of the web on the rings (that part that typically fits over the edges of a picatinny rail or other mount) and make note of that.
Then I hold the ring/rod assembly (it won't balance - it's front heavy) on the top of the action and measure from the top of the barrel to the center of the rod. When I've got that number, I subtract the measurement I got when measuring the web on the rings and I know precisely how tall my mounts have to be; or at least the minimum height I can use.
Conversely, if I have the mount and need to choose rings, I do the same thing but instead of doing a lot of calculating I simply install the rings on the mount, measure to center of the rod, subtract that from the scope diameter/2+5% figure and I know how tall the web for the proper set of rings should be. The 5% is a constant I rely on, only because it seems to work pretty well for large diameter objective lense scopes. Otherwise I might simply use the radius + a millimeter or two and call it good. I've worked on some rifles where the scope clears the barrel by so little that it's impossible to clean under the bell; no my idea of a good thing.
I'm an old guy with old ways so I still believe in mounting scopes as low as possible, consistent with the natural alignment of the sighting eye with the ocular lense when I pull the rifle to the shoulder.

 

[coford]

If it is any help I measured my EGW 20 MOA base and it is .440 at the rear and .330 at the front of the receiver. That is from the bottom of the picatinney groove to the receiver. I can't get any closer without removing the base.

 

[25AI260]

i'll update this... as i go

thank you all, been extremely helpful

doing some measuring suggested tomorrow also i'l be on LL

thanks...

 

[25AI260]

the day started out calling Evolutions 215-538-1012 about their base an got we busy please leave a message... i did
got in patent after an 1hr, decided to call mid way usa


while wait on the phone line 14minutes i finally get a girl that know less then potato chip tells me the numbers i gave her is off the chart........... 20 minute later not getting anywhere i hang up.......
So... i see ant the bottom of the page "live online chat''... an decide Hmmm... maybe i'll better results..
read my fustration s

Status: ConnectedPrint
Richard: i need to mount a NF scope on a remington 700.. outterbell is 2.720 .. from top of receiver to barrel custom .190 looking at egw base and 30mm burris extreme rings i need a 1/4 clearance or more i don't know the height of egw base to figure height rings

MidwayUSA: Welcome to MidwayUSA!
Interaction transferred to CCWebChat.
Derrick: Interaction alerting Derrick.
Agent has joined the conversation

Richard: Hello

Derrick: I would recommend seeking a local gunsmith for more exact specifications. I would be unable to determine which base will work properly. I'm sorry.

Richard: many people mount Nightforce scopes what do they use on a Remington 700 short action its a 12~42X56 scope.. ?

Derrick: I would not know. I'm sorry.

Richard: does larry potterfield know put me intouch

Derrick: Unfortunately we do not have a technical line here.

Derrick: Hello?

Richard: what is the online chat for ?

Derrick: So we can offer assistance with online inquires. However, we do not have gunsmiths on staff.

Richard: if you could Please tell me the height of the EGW base # 80000... we wouldn't need a gunsmith

Derrick: Do you have our product number?

Derrick: Wait.

Derrick: I was able to locate it.

Richard: Product #

Derrick: The manufacturer does not provide us with the height measurement unfortunately. I'm sorry.

Richard: # 630711

Derrick: I would recommend contacting EGW at 215-538-1012

Richard: can't wait for Larry's next thank you letter i appeciate your unhelpfullness LOL's what a staff RichG,...

Derrick: If you have any additional questions or comments, please feel free to contact us at 1-800-243-3220. Our hours of operation are Monday through Friday 8 a.m. to 6 p.m. CT. You may also email us at customerservice@midwayusa.com. Thanks for your business!

Derrick: Agent has left the conversation

well it's near 3pm .... time for a rustynail [dewers]..... i had it any wann buy a NF

 

[25AI260]

A Big Plus
as i was finishing up typing evolution returned my .... the base i want from them is .393

gues i will Enjoy that drink now.... ;D