Pictured are seven variations of the Nyclad cartridges, the first 3 (from the left) from Smith & Wesson, and the last four from Federal.
There may be others, but this is all I have seen. From left to right, they are:
S&W with green primer seal and very short, hollow-point bullet.
S&W with green primer seal and a longer, hollow-point bullet.
S&W in nickeled case and a hollow-point bullet that is longer yet
than the others.
All of the Smith & Wesson rounds have the same headstamp, which is pictured below in the headstamp picture, in the same order as the picture of the cartridges.
Federal with rounded ogive, hollow-point bullet, and red primer seal.
Federal, about identical to above, but with thinner letters
(possible just a newer bunter). The main difference, however, is that this one lacks the red primer
seal of No. 4.
6. Federal with rounded ogive, flat-nose bullet. It is NOT a
hollow-point, This round also has a case cannelure not far below the case mouth.
7. Federal with the same projectile as No. 6, but without the case
cannelure and with a different headstamp layout, although the contents of the headstamp are
the same as No. 6.
Each of the Federal rounds has a a different headstamp, if we count the thick and thin letters as being different. The form and size of the letters of Numbers 4 and 5 are actually identical, as far as I can tell.
These headstamps are in the same order, left to right, as are the cartridges in the cartridge-profile picture. The headstamps need no further explanation other than to again point out that while the content of numbers 6 and 7 are the same, the format of the two headstamps differs.
Photos by, and cartridge from the collection of, John Moss