Author Topic: Bullet seating and measuring  (Read 625 times)

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Offline rpseven

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Bullet seating and measuring
« on: February 09, 2003, 08:07:53 PM »
How does everyone measure thier bullet seating? I mean I know with a caliper. But does anyone use any of the seating gadgets like Sinclair sells if so do they work? I have the Stoney Point OAL measurer and it helps. But I have found that alot of times  the points on the bullets that I am loading maybe inconsistant to each other. The tips might be messed up. Is this a problem for any of you guys. And how does this affect your accuracy? :shock:

Offline BruceP

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Bullet seating and measuring
« Reply #1 on: February 10, 2003, 11:07:12 AM »
I use the Sinclar comparitor (looks like a big hex-nut) with a case that I split the neck on with a dremel. Start the bullet in the case and then chamber it in the gun. This let the rifling seat the bullet to the max OAL. I then take my measurement and go from there.
BruceP
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Offline bigdaddytacp

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Re: Bullet seating and measuring
« Reply #2 on: February 11, 2003, 10:04:06 AM »
Quote from: rpseven
How does everyone measure thier bullet seating? I mean I know with a caliper. But does anyone use any of the seating gadgets like Sinclair sells if so do they work? I have the Stoney Point OAL measurer and it helps. But I have found that alot of times  the points on the bullets that I am loading maybe inconsistant to each other. The tips might be messed up. Is this a problem for any of you guys. And how does this affect your accuracy? :shock:
...Get the comparator tool that Stoney Point makes for use with the dummy OAL gauge..it uses caliber specific attachments that use a specific SAAMI size opening to measure to the datum line on the ogive/curve of the bullet and thus avoids the deformed tips or hollow points.....I use these and the Sinclair Hex type tool the other post mentions ...the Stoney Point is more solid and easy to align attached to the calipers but the Sinclair is quick and with a little care aligns well.....but If you already have the OAL tool then you can buy the holder and inserts for the calibers you need/use to measure the seating depth....this is not interchangeable among the different tools but remains consistant for your tool and your measurements....I found that the  seating depth ..distance off the lands...makes a big difference in grouping in some guns/loads.......and it also lets you check the consistancy of your seating die and bullets.....good luck and good shooting to a fellow shooter from Tennessee....

Offline rpseven

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SDC's
« Reply #3 on: February 11, 2003, 10:17:47 AM »
Thanks for the input bigdaddy, I just got off the phone with sinclair yesterday about the SDC measures. I have the Stoney Point OAL gauge, the thing where the case screws down on this thing and you put whatever bullet you plan to load in it and push it into the lands and then tighten the set screw. Then when you take it back out you measure the length. But I have found this hard to do when the tips are bent up. Thanks, keep in touch. :D