Do cast bullets "rebound" after sizing.
- Thread starter Rockydoc
- Start date
Rally
NC Minnesota
That’s just where I am Bret, it’s a very rare occasion I would need either where / how I hunt. Not that I don’t admire those that go to the effort, but it’s just not practical for me. I have multiple rifles and pistols in several calibers and expect them to shoot in all of them, at least reasonably well. A deer, coyote, or fox can’t tell the difference. I worried more about it when there was a fur market and fur damage was a concern.
Bret4207
At the casting bench in the sky. RIP Bret.
I think a "small group" varies from person to person. I've seen people brag on groups shot at 15 yards that I would have been embarrassed to show if I shot them at 250. I know I can't shoot like I used to when I could actually see, but I'll be darned if I accept a 5" group out of a benched rifle at 50 yards as "good shooting"!!! I've tried to get my boys into the idea of the one hole group but they were too impatient and didn't seem to have the interest. They want minute of deer and that's good enough. Seems like wasting ammo to me go paper punching with expectations like that.
Missionary
Well-Known Member
I recon most people are happy to participate watching others excel.
Schools give out awards for just showing up.
Schools give out awards for just showing up.
Think of a cast bullet as a super-cooled liquid rather than a solid. There is enough latent energy (remaining heat) within the structue to allow antimony movement over the coming weeks (even months) once the bullet forms and falls from the mold. The alloy with this movement forms dendrite hard spots (trees) that move the bullet shape slightly. Eventually, heat-treated bulets will soften due to this movement.
Add to this that many people have not been trained in the proper use of a micrometer (or dial caliper), thus do not get repeatable measurements. Measuring a bullet can be very frustrating due to slightly rough surface and not getting the micrometer square to the axis of the bullet.
When you look at the possible combination of atributes in this question, answers are not easy to obtain nor can you generalize for one set of values.
Lyman in an older Cast Bullet Handbook has an excellent article concerning alloy hardness includding dendrite formation.
Add to this that many people have not been trained in the proper use of a micrometer (or dial caliper), thus do not get repeatable measurements. Measuring a bullet can be very frustrating due to slightly rough surface and not getting the micrometer square to the axis of the bullet.
When you look at the possible combination of atributes in this question, answers are not easy to obtain nor can you generalize for one set of values.
Lyman in an older Cast Bullet Handbook has an excellent article concerning alloy hardness includding dendrite formation.
Bret4207
At the casting bench in the sky. RIP Bret.
Lotta truth in that sentence right there!!!
L Ross
Well-Known Member
Me either, but I am sure glad there are those that do. Their experiences and advice here have made my less demanding standards relatively easy to obtain. A lot of hard work freely given away, thank you guys.
Dimner
Named Man
I'm one of those not trained in a micrometer. However, I have developed practices that provide me repeatable results with a dial caliper down to 0.001". I ignore the 0.0001 digit on my calipers, I don't trust it.
For a micrometer, this is the best youtube video I have found for self learning on the subject. However, I'm still not nearly practiced enough.
For a micrometer, this is the best youtube video I have found for self learning on the subject. However, I'm still not nearly practiced enough.