Ray - "During the first part of 1944 a request was received from the Ordnance Officer of the Hawaiian Department requesting a small quantity of Cal. .45 tracer cartridges for the submachine gun to be used in training by Jungle Training Center. Frankford Arsenal was ordered to manufacture as soon as possible a 10,000-round test lot. In order to speed delivery, the Arsnela loaded a modified M1 Tracer bullet with a red-colored tip in the zinc-plated steel case with P4768 single-bas propellant. This cartridge worked well in tests and an additional 90.000 rounds were made and sent to Hawaii. On January 13, 1944, the nomenclature Cartridge, Tracer, Cal. .45, T30 was assigned to this round by the Office of the Chief of Ordnance. During march 1944, the Chief of Army Field Forces requested an additional one million rounds to be made. This order was assigned to Frankford Arsenal.
"Quantities of the T30 cartridge were furnished to the various service boards for test. The results of these tests indicated that there was no further requirement for Cal. .45 tracer ammunition for combat use.
"One lot of the T30 loaded during March 1944 2was FAX45-843, with a white-burning trace mixture. This round was identified by a white tip and cross stamped in the nose of the bullet. The case was zinc-plated steel, headstamped F A 4.
"The original T30 was shown on Dwg. B7636733, dated April 11, 1944, which was essentially the M1 bullet in a steel case. The bullet weight was 221 grains, a slight reduction due to a redsigned jacket and different igniter and tracer composition. The powder charge was 5.5 grs. of DuPont P4768.
"Reports from the field use of the T30 indicated that occasional muzzle bursts and erratic bullets were occurring. In an attempt to correct this problem, Frankford Arsenal started a new series of tracer bullets...."
Ray, the series of bullets wer FAT1, FAT1E1, FAT1E2, FAT2, FAT3, FAT4, FAT5, and FAT5E1 The story of the T30 continues, but it is simply too long to recount more of it here. First lots seemed to be packed in 50 round boxes, but mentioned is the fact that the T30 was used as a signaling cartridge, and this squares with later packaging of 20 rounds boxes wrapped in wax paper like the survival kit shot cartridges were. I have one of these boxes.
This information is from HWS II, pages 33. In keeping with the title of that volume, their is no discussion of the T-30 rounds made in 1947. Hower, under discussion of bullet FAT5, we find it is the only bullet with a red tip and also the cross stamped on the nose. No mention of why the cross was stamped, but perhaps for no other reason than to ID it as FAT5. This bullet weighed 208 grains.
I have no more .45 tracer rounds in my collection, of course, only empty boxes. But, you might weight your round against a normal. similarly dated, steel-cased FA .45 round, Ball 230 grains, and you can probably get a close idea of the bullet weight without pulling the bullet. My experince years ago of trying to pull FA .45 tracers, which were sealed into the case with a black tar-like substance, was poor. I totally ruined a kenitic bullet puller and had no success.
I don’t know if the T30 FAT5 is so seal in or not.
I wish I could help farther with post-war production of the T-30, but unfortunately, I have no other info now. By the way, I am sure you have Volume II. I typed as much as I did for those who don’t have the book. I simply could not continue as am running out of time today.