Cartridge Over All Length Gauge


PDA






heathkiks
November 8, 2012, 11:54 PM
I have been looking for a proficient means of measuring the COAL on many different guns. The Hornady system is cumbersom and requires ALOT of components. I don't trust the semi neck sizing and chambering method, as the bullet could stick at the lands and pull out some.

I have seen a gauge similar to the one Frankfort Arsenal produces, just a lot better. The manufacturer was "Joy Industries" in Longmont, CO. Well made and accurate.

If anyone has a line on one(or similar), please let me know.

If you enjoyed reading about "Cartridge Over All Length Gauge" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!
homatok
November 9, 2012, 01:22 PM
I like to make whatever tools I can (just cause I’m cheap). OAL gauge: Take a piece of brass, fired from that gun, (or if the gauge will be used for more than one gun of that caliber, a full length resized brass) drill through the base of the case and thread it for a long bolt that will fit into the case-neck. Run a nut (for locking) onto the bolt and turn it into the case. Seat a bullet into the case, insert into the gun, turn the bolt in until the bullet is pressed against the rifling, use the lock nut at the base of the case to ensure the bolt cannot move, remove the gauge from the gun and measure from the base of the case to the ogive on the bullet.

CMC
November 9, 2012, 01:46 PM
This is what I use Sinclair Bullet Seating Depth Tool to measure the distance to the lands for a particular bullet

http://www.sinclairintl.com/reloading-equipment/measuring-tools/bullet-seating-depth-accessories/sinclair-bullet-seating-depth-tool-prod35491.aspx

Yo also need one of these to measure to the ogive

Sinclair Hex Style Bullet comparator

http://www.sinclairintl.com/reloading-equipment/measuring-tools/bullet-comparators/sinclair-hex-style-bullet-comparators-prod34262.aspx

heathkiks
November 9, 2012, 03:06 PM
Homatok, I have never thought of doing that.

The Sinclair looks well made, but still requires a lot of 'do-dads' for specific rifles.

This is kind of what I had in mind (the lower one):

http://i753.photobucket.com/albums/xx172/tenth1/COALgauge.jpg

http://i753.photobucket.com/albums/xx172/tenth1/COALgauge2.jpg


Simple, effective, works on any gun from the muzzle end. Mostly just a cleaning rod with a flat tip and some well made stops.

CMC
November 9, 2012, 03:35 PM
The problem with the hornady Hool is tha is very fragile and require a modified special case for each caliber t, there are about 50 available.
I guess you could drill and tap your own cases.
With the Sinclair you use a case fired in the rifle you want to measure.
I got the Sinclair tool with the adapter for the Ar and the Bolt action.
There are about 10 adapters for bolt actions but I only have the one for bolts and have used it on several different rifles.

fguffey
November 9, 2012, 07:12 PM
“Cartridge Over All Length Gauge”

tools are nice, not necessary, convincing someone involved in reloading the best tools are free is impossible, it is not necessary to purchase more tools, it is necessary to change the methods and or techniques used when reloading. transfers, standards and verifying are not terms in the vocabulary of a reloader. I transfer the dimension of the chamber to the die and back to the chamber.

F. Guffey

heathkiks
November 9, 2012, 08:58 PM
Guffey, you lost me with "transfers, standards and verifying are not terms in the vocabulary of a reloader. I transfer the dimension of the chamber to the die and back to the chamber."

If you enjoyed reading about "Cartridge Over All Length Gauge" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!