Actually the Russians have two rounds that are similar to what you have drawn. Designed, in part, by another Oleg. According to
The New World of Russian Small Arms & Ammo by
Charlie Cutshaw the 4.5x39mm (SSP-1M)and the 5.56x40mm (APS) are what you have drawn.
'The cartridge was designed by the team of Pytor Sazonov and Oleg Kravcheno, who received a USSR State Prize in 1983 for their work, along with Vladimir Simonov, designer of the SPP-1 pistol [underwater pistol].
In their initial experiments, the designers found that standard bullets fired underwater had very limited range and would never work in underwater firearms. The designers therefore began to look at patterning their bullets after the long darts used by divers for spear fishing. This proved to be the solution, and the cartridges for both the SPP-1 pistol and APS underwater assault rifle were designed using the "dart" bullet.
The SPS cartridge fires a 203-grain (13.2-gram) steel bullet at a muzzle velocity of approximately 820 fps (250 mps). the bullet is not spin stabilized; stability is obtained by a cavitation bubble that forms along the interface between the long axis of the bullet and the water through which it passes. According to Russian sources, the bullet does not stabilize at all in open air and has a range of only some 20 meters in that medium, along with degraded accuracy. Effective range of the SPS bullet underwater depends on depth and concomitant water pressure.
SPS cartridges are loaded into the SPP-1 pistol in four-round clips. Basic load for the pistol is four clips.
SPS 4.5x39Rmm Cartridge Specifications
Cartridge Weight 278 gr. (18 gm.)
Cartridge Length 5.7 in. (145mm)
Case Length 39mm
Muzzle velocity (In Air) 820 fps (250 mps)
bullet Weight 203 gr. (13.2 gm.)
The MPS underwater cartridge was developed in conjunction with the SPS pistol cartridge ... and the principles ...are identical to the pistol cartridge. the differences are in scale; the rifle cartridge is slightly larger in diameter and overall length. the case is rimless in order to function in the fully automatic APS underwater assault rifle. Given the larger case volume, the velocity of the 120mm-long MPs bullet is appreciably greater than that of the SPS pistol bullet, withconcomitantly greater range both underwater and in open air. Effective range underwater is a maximun of 30 meters at 5 meters depth and 100 meters in open air.
5.66x39mm MPS Specifications
Cartridge Weight 398 gr. (26gm.)
Cartridge Length 5.9 in. (150mm)
Case Length 39mm
Muzzle Velocity 1,197 fps (365 mps)
Bullet Weight App. 284 gr. (18.5gm.)
Muzzle Energy 788 ft. lbs. (581J)
This is an excellent reference on many unknown and obscure arms that are starting to show up on CNN etc. According to Mr Cutshaw (my copy was autographed at Knob Creek
) there may be a second updated edition coming. He says he has quite a bit on additional information since writing the book. He is also bringing out a book on Izmash <sp>. Due out around the begining of next year IIRC.