[Linked Image from thumbs2.imgbox.com]

For some reason, these PPU 8X57IRS PSP 196 grain / 12,7 gramme rounds hit perilously low. I have shot about a box of them and they just hit low. Ignited about 1/2 dozen this afternoon & the average velocity was 704 m/s(published is 730 m/s & I didn't get anywhere close to that) and a fair spread.

Now the S&B version hits where you look, have a much smaller spread and had a mean velocity of 715 m/s vs 726 m/s published.

Any idea why the PPU cartridges consistently fall short?

Serbus,

Raimey
rse