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Old 03-15-2008 | 04:40 AM
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falcon
Boone & Crockett
 
Joined: Mar 2007
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From: Comance county, OK
Default RE: how to measure maximum overal length

"How do I consistently load to the ogive when my die uses the tip?"

1. Take acartridge case that has had about .1 inch of the neck re-sized.
2.Seat the bullet long, put some grease on the bullet.
3.Insert the dummy round into the rifle and close the bolt. You have just jammed the bullet further into the case. The ogive of the bullet is now touching the rifling lands.
4. Eject the dummy round and measure the OAL.
5. Repeat 1-4 at least three times.
6. Set your bullet seating die to give you acartridge with an OAL .010-.050 shorter than the dummy round.

You may have to play around with the OAL a little to get the best accuracy. Make sure that the cartridge OAL is at least .010 shorter than the dummy round: Firing a roundwith the bullet touching the rifling causes pressures to go up dramatically.
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