| Cartridge type | Weight per round (approx.) | Weight for 210 rounds |
| M80 Ball (7.62×51) | 379.5 gr (24.6 g / 0.0543 lb) | 11.4 lbs |
| Shellshock M80 (100gr bullet, 50% case) | 240 gr (15.6 g / 0.0343 lb) | 7.2 lbs |
| 7.62×39mm (M43) | 270 gr (17.5 g / 0.0386 lb) | 8.1 lbs |
| 5.56×45mm (M193, 55gr) | 179 gr (11.6 g / 0.0256 lb) | 5.4 lbs |
Honorificable
Trying to lose weight?
I believe a 100grain shellshock m80 would deliver massive energy on target as well as being only 2 lbs heavier than 556. Here’s a video of a guy using 100grains out of an m1a to get 3400fps.
I’ve brought a scout length m14 on a night time predator hunt with polymer true velocity w nosler accubond ammo. I think it is somewhere between 1/3- 1/2 the weight of standard brass ammo. In one 5 round hunting mag, you wouldn’t notice the difference. If you’re carrying hundreds of rounds, you def would appreciate it.
I was wondering if that stuff would work in an m14, I will have to admit that i have a bias of trust towards something made out of metal though. Hey, maybe we can bully Shell Tech or Badlands munitions into making the hypothetical 100gr a reality for the commercial market. Why not have a rifle you can carry a fighting load, that can take ammo from a belt fed, AANNDD can use match to attain 1,000 yds or even use subsonics?
I never heard of these before. All new to me! I have always been leery of metal cases unless it's in a for-fun SKS or similar and I doubt I would shoot it in my M1A's. I would like to try them for S*its & Giggles in a bolt rifle to experiment with. Their claims are pretty lofty IMO but seeing is believing.
Looks like Shell Tech has released their 308 cartridges to the America! I have emailed them to ask about this idea with the understanding that for for me, it would be in an M1A. I'll keep ya'll posted.
I bought like 40 rounds of it so when it comes in, I might un seat the bullet and then see how much it weighs with a 100 grain Barnes projectile and then multiply that by 210 rounds.
so the scale I had measured in grams, I only had a 110grain projectile to weigh so if I had a 100grain 30 cal bullet, it would weigh 16 grams. This means that a 210rounds load out would weigh a little less than 7 1/2lbs compared to 8 1/2 lbs for 210rnds of 762x39. A “full” load out of 77gr OTM 556 would weigh 6lbs.
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