scope base shimms?

[6.5x55swm]

I just trade for a weatherby vanguard in 300 wsm, it has weaver bases and I started to mount a scope and discovered that the front base is a bit lower that the rear base, at least a 1/32, I have the correct bases, 35 and 36, so what do you use to shim up a base? it also says on the packaging for the base it may require shimming

 

[bat119]

I got some from Korth however I was having problems with some Leupold mounts don't know who does Weaver?

 

[nomad 68]

If your estimation is correct , that's over .030" and too much to shim imo. I would buy another set of bases .

 

[c-fbmi]

Make yourself some shims from 20 Ga aluminum and carry on. .030" is not too much to shim and is a standard shim for some Weaver bases.

 

[petew]

By chance do you have them installed on the opposite ends of the receiver from where they should be?

 

[6.5x55swm]

they are installed in there proper place

 

[Lefty Dick]

Have you shot the rifle without shimming?
Is your elevation adjustment maxed out?

Until you do, don't be jumping into thinking stuffs wrong.

As an aside I have used brass shim stock in the past to make my own whims.

I get small pieces left over from jobs at work.
5 thou
10 thou
20 thou

Cut and drill to fit.

 

[Boomer]

Make yourself some shims from 20 Ga aluminum and carry on. .030" is not too much to shim and is a standard shim for some Weaver bases.

Ted showed me a neat trick for shimming base mounts, turns out a plastic hotel room key is the perfect thickness. It worked like a charm on a FN 98 9.3X62.

 

[hunter5425]

I bought a cheap set of feeler gauges at Princess Auto and used these as their width was near perfect and there is a good selection of thicknesses.

 

[Buckmastr]

Ted showed me a neat trick for shimming base mounts, turns out a plastic hotel room key is the perfect thickness. It worked like a charm on a FN 98 9.3X62.

Yeah I shimmed the front of a BSA CF2 with weaver bases this way. It was perfect

 

[stubblejumper]

I have never found it necessary to shim the bases on a Vanguard, then again, I don't use Weaver bases. I used Tally Lightweights on my last Vanguard, and they worked perfectly.

 

[6.5x55swm]

ya, I am thinking I will go with tally also

 

[nomad 68]

ya, I am thinking I will go with tally also

Excellent choice. While it's obvious peope are doing it, i would buy different bases before shimming that much. Especially on a widely produce platform like the vanguard. That's just personal choice mind you.

 

[a j cave]

What is the difference in the 2 bases? Would a second 36 solve the problem? If you have room a lower rear would help.

 

[wolfclan]

Bedding compound or epoxy and a release agent make sure to trim and clean it up before it's fully cured

 

[Dogleg]

I haven't seen it for awhile but it was more common on the first series. The issue
It isn't variation in the bases it's variation in the recievers.
That means that if you haven't seen it before it doesn't mean you are good, it means you're lucky or unobservant. .030"
Is normal if you need the shim.

I can't remember the number anymore but there is thicker Weaver base with the correct hole spacing that will fix the issue. It required a helpful counter guy, opening a few packages and a caliber but we found one. Wish I remembered the #, but I sold rifle a long time ago. I remember having a similar issue
With a Mark V ultra lightweight as well.

 

[elimsprint]

Just use cheap feeler gauges or pop(beer) can as shims, works fine. You can also find the right sized deep socket and use it, wrapped with fine abrasive paper, to grind down the bottom of the high base.

 

[6.5x55swm]

thanks for all the info, but I am not going to shim the base when tally mounts won't have that issue, I might have shimmed the base up if the rilfe was a smaller caliber, it's a 300wsm

 

[Dogleg]

When you get your bases mounted up, slap a straight edge on them. They will either be level or they won't be.

 

[BCBRAD]

Get plastic shim stock, easy to use. http://www.accutrex.com/color-coded-practi-shim