Jack,
Do you know the comparable wear rates of Cast steel shot versus Cut Wire shot? We use S-70 M and we reject all shot that passes a #60 Mesh Sieve-(.0098”). Since we cull so much of our shot- the initial wear-in of the cut wire shot would be a concern. We currently purchase a special size distribution of S-70M cast steel shot which comes new to us as:
all pass -#40 sieve
98% stays above a #60 Sieve
New: -We usually see 2% on a #45 sieve and 48%- 58% on a #50 sieve and similar on a #60 sieve.
This has shortened the time to Saturation from SAE spec S-70 M shot which allows so much low mass shot.
Name and Company Withheld
