Originally Posted by Max Heat
I have found out that any ultra mag gauge will will work for any OTHER ultra mag caliber, WITH THE EXCEPTION OF THE 338RUM, which would need it's own SPECIFIC gauge. I'll get a 300RUM gauge, but what is the best brand? I've found that Forster, Clymer, Manson, and Ackley make them. But I've also heard that there are variances between them, within the SAAMI spec. I want to use the one that is the tightest (shortest).
I use Manson,PT&G and Clymer and have found them to be very accurate to SAAMI spec.
I normally use the same brand head space gauge as the reamer I use for the chamber.
there should be no difference , but it just makes sense to me that they both be cut by the
Note: The head space gauge will not be tight on the sides of the chamber. It is used only to
set the chamber length (Head space) of the chamber. Also if you notice, SAMMI has two sets
of dimensions for each cartrige. One is for the chamber and the other is for the cartrige
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