9.3 molds and what GC size?

[ejjuls]

Hey guys -

Quick question:
What GC size does the typical 9.3 or 0.366 mold take?
Been looking at picking up a #174 and #175 mold from NEI (email them the same question..) for a 9.3x74R Ruger #1. If a guy has to use custom GC's then I might have to re-think this!!!

Thanks
Eric

[45 2.1]

Most 9.3 molds i've heard of should take the 375 checks, but I have heard of a few takeing 35 checks. If someone has a mold takeing the 375 checks, would you mike the gas check shank diameter and report it please.

[9.3X62AL]

45-2.1

Mountain Molds 270, using 375 Caliber checks--shank diameter is .355". This gives a slight "snap fit" that usually stays in place by friction.

There is not any inordinate force required to run this check/shank assembly into a .367" sizer die. Once seated, the check takes on a slight convex aspect--but this does not affect accuracy. I have fired MANY 5-shot groups sub-1.25" at 100 yards, 23.0 grains of 2400 giving 1700 FPS. A few groups have approached 1" at that distance--so I think the checks are staying in place.

Eric--that is a classy rifle in a classic caliber.

[Glen]

I use the NEI #175 in my 9.3x57 and use Hornady .375" GC's, and they shoot very for me.

[mstarling]

The NEI folks told me to use 35 cal gas checks with their #174 mould. No problems with them.

[ejjuls]

Just got an email back from NEI as I sat down at the computer.
According to NEI their 9.3 molds are set up to use the .35 cal gas check.
This makes it easy!!
Time to order me a mold and see what this thing can do!
Thanks everyone for the quick replies and help!!
Eric

[Nrut]

ejjuls..
Please be sure to report back as to how your Ruger shoots those cast boolits...I ordered one last April but it has'nt showed up yet....:roll: ...
I have both those molds from NEI and as they told you they use .35 cal. gas checks....Well I casted some up with ACWW and ran them thru a .368" sizer and the .35 cal. gas checks won't stay on so I scraped out the bases with a scrapping tool I made from a chainsaw file (Verl Smith wrote about using these before he started making molds) and used .375 checks...now they stay on fine...
Good luck,
Mike
Might add if you have a RCBS .375 / 250gr/FN mold you can lube and check in you .377 die then run it thru a Buckshot .368" push thru sizer and you have a great shooting boolit...least it shoots great in my 9.3X62 and 57's with H4895...

[floodgate]

AL and others will be happy to hear this:

Bev and I watched "The Quiller Memorandum" on a Netflix DVD (addictive, those...), and it was mentioned TWICE that the British agent killed in a Berlin telephone booth while trying to 'phone in a report on the location of a neo-Nazi group...

was shot with "a nine-point-three".

floodgate