.38 Special Wadcutter Chrono Data

[Moonshot]

620 fps with a 148-grain wadcutter will produce just over 15 inches of penetration.

Neither.

The prediction was for performance in 10% ordnance gelatin (≈ mammalian soft tissue). Clear Gel is not compatible with the mathematical modeling used to compute the value, so its use was never assumed.

Apologies for the lack of specification.

No apology needed. My terms were incorrect. I meant ordnance gel. I was wondering if the 15" of penetration was with or without barrier.

[the Schwartz]

No apology needed. My terms were incorrect. I meant ordnance gel. I was wondering if the 15" of penetration was with or without barrier.

Since velocity loss through 4LD is typically small (usually < 40 fps) and suitably hard alloy doesn't expand after 4LD, 15'' is a valid prediction both with and without 4LD.