The notes I have with these cartridges state that they were originally from Bill Woodin via the collection of the late Peter Skala. They have been floating around in the unidentified tray for a long time and I have not been able to find any info either in the ECRA Database or HWS.
The fist has a note on the cartridge stating “28 US EXP” I cannot make out if the number above is 19510 or #510. The bullet is GM non-magnetic with a small hollow tip. The headstamp was removed, but the original was FA 38 NM.
The second is a steel case with the Zinc coated P4 primer. It has the FAL headstamp as discussed in HWS 2 p. 63
The last specimen is noted in the ECRA database as a .30 private proposal to WRA (08 080 BLC 010)