Does Berger Make Jump Irrelevant?

Hikinghunter said:

Thanks. I read some other threads written by folks frustrated with the OAL tool. Finally figured out the obvious - you can't treat a plastic tool like a metal tool. I was shoving the bullet way too far in the lands because the give in the plastic was confusing me. So I wound up sizing the neck of the modified cartridge up a touch so there's no resistance. That way I can feel the "touch" better. Also learned to very gently lock it down so the plastic rod doesn't walk on me.

This resulted in 10 readings with 5 thou from each other. I also used a cleaning rod to push the bullet back out, and paid attention to whether the bullet "stuck" in the land a bit much. Disregarded those and got 3 thou consistency.

Much more faith in my readings now. Still keeping 30 thou off the lands, just to be safe.

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FEENIX said:

Depends on what bullet you use. For instance, on my .257 WBY, below are bullets I have. From L-R, 110 Sierra, 145 Black Hole, and 163 Chinchaga. With the 145 and 163, it has no problem touching the lands.

View attachment 608274

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bob812 said:

How do Dale's Chicnhaga bullets shoot for you?

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