It needs a little further digging before you plunge. 950 bar is the proof pressure, service load would be @ 750 bar. That would preclude any SAAMI Ammunition. FYI most Spanish 28 ga guns coming to the US are proofed at 1300 bars/ 1370 Kgs/cm/2 Call Birmingham Proof House to discuss and ask about off the shelf 3/4 & 1oz loads to US specs.


Hugh Lomas,
H.G.Lomas Gunmakers Inc.
920 876 3745