I'll appreciate any info in what is THE correct head space for: 9,3x62 8x68 and 6,5x68.

Also what you think about a german scope I've, is a Nickel Supra 2,5x20, I show it to my smith with the intention of use it in the 9,3x62 and he says is a bad scope, that will not repel water or humidity and that sometimes the reticles brokes up with recoils

Is this possible? is an old scope but without use (completly new), I can't believe it no matter how old the scope is.

Thanks
LG

Most pre-war scopes were not sealed as are todays scopes. They are not air-tight, so they cannot be filled with nitrogen to prevent fogging. Even if the scope appears to be in great condition, time has most likely dried the the fiber gaskets and glue that hold the lenses in place.

They are fine for shooting mild calibers at the range, but they are not a good choice for heavy calibers and wet weather.

There are some shops that specialize in rebuilding old scopes to modern specifications.

KurtC,
Thanks for your reply. I don't think the scope is that old, maybe 30 years??
Thanks
LG

Nickel Supra scopes in 2.5X were made from 54 to 74. Nickel was a Zeiss engineer who skipped out on the reds and made it to the west. The optical engineering is the same as Zeiss, they are waterproof, have 1/2-minute click adjustments. according to the Old Scopes book, they are "very high quality, extremely rugged scopes". I think you have a gem there. - Dan

[ 08-15-2003, 04:03: Message edited by: dan belisle ]

Dan,
The man I bought it from never use it before and tell me he imported to my country aprox 30 years ago, it's filled with nitrogen.

I still don't understand why my smith have such bad opinion on Nickel supra scopes, he told me that maybe I'll never have a problem but...

He just tell me to protect it from rain and humidity

Thanks both for your answers
LG

[ 08-15-2003, 18:06: Message edited by: Lorenzo ]

Lorenzo, the "correct" head space is measured by a metal "go gauge" that approximates a cartridge in the chamber. You should be able to close the bolt on it. If you can close it then you need to check to see the chamber is too long using in most cases a "no go gauge".

Thanks Chic!!
LG

Lorenzo: your
�smith is nuts. The Nickels were among the very best the industry has produced. Of course they never did enough publicity in the U.S.A. Now Gerhardt, these scopes are well known and sought after here (and pricey too I must add).
The German cartridges being very common in Argentina, our �smiths know well the headspace dimensions, thus I suggest you drop a line to Mr. Jos� Podymski of Armas Pantera or to Master Franco Tagle of La Brama Custom Guns (the country�s best gunmaker in my opinion).
Que tengas buena suerte!

Hello Lorenzo - Dan B is correct.

You can contact the factory at

www.gerhardt-optik.de

and they will supply details of your scope - date of manufacture etc. They can also change the reticle for you if you wish.

cheers edi