GC vs GC design w/o GC?

[Martin Luber]

Has anyone studied this issue?

I am assuming that a GC boolet design without the GC is no different from shooting a flat base bullet provided that the velocity is reasonable for the alloy selection.

Is it always true that at higher velocity say over 1709, that GCs are required?

Am I missing something?

Thanks

[charlie b]

Many of us have.

Yes, you can shoot a GC bullet without the GC....but....

Bullet accuracy is very dependent on the square base of the bullet. If it is off then the gasses that escape at the muzzle will 'push' on it and mess up accuracy. Without the GC you basically have two 'bases' to make sure are square, the last driving band and the base of the bullet. If both of these are good then you are probably ok. Just another inspection point when casting.

For pistol distances it probably makes no difference. For rifles it is something that needs attention.

If using lube then the max velocity is dependent on many factors. You just have to experiment and see where the limits are for your combination of alloy, hardness, lube and rifling twist. If you powder coat then I am not aware of a velocity limit based on leading. I have fired plain based bullets at 2000fps in a .308 without leading.