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View Full Version : what gas check for .303 British?



lee n. field
07-14-2008, 09:31 PM
I recently picked up a C312-185-1R mold.

Lee tells me
You can use Lyman 226 or RCBS 465. We have no info on Hornady.
but I don't see either as a part number on any of the online vendors I've looked at.

What gas check to I need for this?

Tumtatty
07-14-2008, 09:36 PM
.30 cal

runfiverun
07-14-2008, 10:22 PM
regular 30 cal will do.
if they give you grief you may have to bump the size up a bit with a punch.

docone31
07-14-2008, 10:55 PM
I have that mold, and I use .30 cal. gas checks. I also size without gas checks, and paper patch. I prefer that to using gas checks with that rifle.

KCSO
07-15-2008, 05:05 PM
Unless you have a minimum dimension bore you will probably be dissapointed whith that Mould. I had to lap and beagle mine to get the bullets to shoot at all and eventually i made a reamer and reamed it to a round nose design with a 304 diameter on the nose. From the box I never had any problems seating regular Hornady gas checks 30 caliber.

dromia
07-15-2008, 05:31 PM
As has been said .30 cal GCs for that boolit,however you really do need to slug your throat/bore to know what the rifle needs.