A fellow cartridge collector has asked me to post some questions for him, the following is the information sent to me to post here.
Below are photos of the cartridges in question:
Matching headstamps for the above four cartridges (all are F A 5 1 ).
Question subject #1 pertains to the two T103E1 yellow tip cartridges. Below is a detailed description for each yellow tip cartridge (click on photos for larger image)-
Reference material from earlier Forum discussion:
Questions concerning the T103E1 Obseration rounds:
1) Is there an explanation for such a large variation in the length of the yellow painted bullet tips?
2) Is either cartridge a fake or are both fakes?
Question subject #2-
Information provided for the two cartridges in question:
Note there is 3 grains difference in weight between these 2 cartridges, most likely NOT powder related. Also each cartridge has a metalic rattle noise when shaken
Questions concerning the two “ball” cartridges:
1) What is causing/making the metalic rattle noise in the bullet area of the cartridge?
2) Are these AP bullets with unpainted bullet tips or are these something else?.
NOTE: I have no access to X-ray these cartridges at this time.
So there you have it, any help from the .30 Cal. pre-NATO/7.62x51mm crowd would be most appreciated!