New Geco 7.62 x 51 168 BTHP Match + new brass head stamp AMTC

[357Max]

Just got a case of Geco 7.62 x 51 168 HPBT match & the Head Stamp is AMTC
My google fue has found examples of 5.56 (in 2020), but this is the first I've ever seen AMTC on 7.62
I presume it could be short for Ammotec? Geco, Ruag, Norma, & RWS are all under the same umbrella.
This brass may be Swiss made Norma?

Anyone have any info?

I'll give this a try Friday & see how it does with MV etc.

 

[Mr Tibbs]

geco ammunition review - Google Search

 

[357Max]

So apparently there is zero info about this new Geco 7.62 x 51 168 BTHP match with AMTC head stamp.

Guess I'll give it a go. This was $18.97 a box on St. Patrick's day sale last week. I picked up a case, hell I'm your Huckleberry for $19 a box.

Don't ask it's gone now & not even listed on the sight I purchased from anymore. I didn't post about it on here at the time because I didn't know if it was any good.

Got a chance to try it at the range this weekend & compare it to FGMM.

I'd still like to know what the deal is with the AMTC Brass, but Google comes up goose eggs on this as to origin. The only thread I found trying to narrow down origin of this AMTC brass was for 5.56 in 2020 and consensus was it is Swiss made?


First I fired 5 rounds each with the Magnetospeed V3.......... 308 FGMM 168 BTHP vs. Geco 7.62 x 51 168 BTHP Match.
308 v 7.62 is the opposite of .223 v 5.56, whereas 308 is typically hotter/faster then the mil version. That's what I was expecting.........nope.

FGMM COAL = 2.800 will edit to add BTO once I measure it.
Geco COAL = 2.772-2.785 (could be the cause of increased ES/SD) will edit to add BTO

Gun used was DPMS 308 Proof CF 18" 11T

FGMM 168 mean velocity 2531
Geco 168 mean velocity 2581

All fired brass looks good. No pressure signs & functioned perfect.

Did I mention the wind was 15-40mph from my 10!

I then tried to put a 5 round group together of each @100y using, bipod, rear bag, prone. It grouped pretty well considering the wind & me being a little out of practice on the large frame with 3.5 lb trigger. Honestly the difference in group is horizontal not vertical as I'd expect with the larger ES/SD, so it's likely to have been me.

I then went straight to 500y steel for the last 10 rounds of each for some fun in the wind + a couple double taps to here that satisfying 2 x ding after second shot. Performed great at distance. If it ever comes back in stock I'll be buying more.


The Geco did not have as good an ES/SD vs FGMM, however the meplats are cleaner on their version of the 168 & HP has a bit bigger opening.

 

[6.5SH]

Have a Hornady or other comparator? If so how do they compare CBTO wise?

 

[357Max]

Have a Hornady or other comparator? If so how do they compare CBTO wise?

Yes I have Hornady. I'll measure a box of each tomorrow & add those dimensions to post above.

 

[Kickin45]

I also purchased 2 cases of this the same day as you. Haven’t had a chance to try it yet, so I am very interested in your report. I bought it to fill a a need for 168gn ammo. Would be great if it ends up being similar the FGMM
Thanks

 

[cruze5]

looks just a tab bit gotter that FGM. good find! hopefully the groups stay consistent like that

 

[Superdave001]

Anybody ever find out more info on this ammo? I've got some and would like more info. Can't find it for sale anywhere, either.
I can't readily locate where/when I got it, so it's a bit of a mystery. Reading the above info leads me to think it's probably some
decent stuff. I'd just like to know a bit more about it. I noted on one box that it had a MV of 2679 and a G1 of .363 (info added
by me at some point - not sure where I got the data from). Thanks for any help you can provide.