Yup, I was picturing in my mind the bullet spiraling as it flies, but since doing the math, even with 38spl in my gp-100 at 900fps w/1:18" twist, that thang is spinning at 36,000rpm or 600rp/second. I'd guess if they would cause any spiral effect whatever, it would be very, very small at best!
Besides, all my guns are more accurate than I am!
Circa 1964: Rocky to Bullwinkle:
"But that trick never works!"
But Bullwinkle tries it anyway...again and again