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Ammo 5.56 NATO Federal BTHP 62 Grain 20 Round Box MK318 MOD-O USMC SOST Match Bullet 2925 fps
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Ammo 5.56 NATO Federal BTHP 62 Grain 20 Round Box MK318 MOD-O USMC "SOST" Match Bullet 2925 fps
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Manufacturer: Federal T556TNB1
Item: AMM-2810

5.56x45mm NATO Federal BTHP 62 Grain 20 Round Box MK318 MOD-O USMC "SOST" Match Bullet T556TNB1. The military requested these be marked seconds to be sold to the civilian market.

This new SOST round from Federal Cartridge was engineered for the USMC as a supplemental replacement round to M855 green tip with more desirable terminal characteristics. NSN # 1305-01-573-2229. Designated as MK318 MOD-0 the round was designed as a barrier defeating round with superior penetration and better ballistic stability when shooting through glass, car doors and other barriers where other rounds perform poorly. It was engineered after the Marine Corps identified issues with the M855 round. This round utilizes a 62 grain open tip boat tail hollow point bullet with a lead core and reverse copper jacket creating the open tip.


Non-returnable item. We will not accept any returns on this item.

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Average Customer Rating: 4.3 Rating (13 Customer Reviews)  Write a Review!
Page 2 of 3 (13 Reviews)
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3.0 Rating Uneven seating? - 4/26/2012Ammo 5.56 NATO Federal BTHP 62 Grain 20 Round Box MK318 MOD-O USMC "SOST" Match Bullet 2925 fps3.0000
Reviewer: Raderman1
I ordered 5 boxes based on the superlative reviews here on CTD. When I opened my first box, the primer seating was drastically uneven from round to round. I can't return them but if I could I would. Based on other ammo (Black Hills, and BVAC of the same or similar rating--BTHP, 62, 69, and 75 gr.) which is in the same price range and performance specs, I expected higher quality control from ammo at this price point. It just seems sloppy to have rounds from the same box come out seated between 1-2 mm apart. Haven't taken it to the range yet to see how it performs and haven't opened other boxes yet to see if this was just a dud box or if they're all seated at different depths. The rest of the reviewers seem thrilled with this ammo, so maybe it was just a bad batch, but with no recourse to send back, I'll just have to take my chances and let you all know what happens. Did no one else have issues with primers seated differently like this? Can anyone tell me if it even makes a difference as far as performance? I think from now on I'll just stick to the quality ammo I know is perfect every time, but would appreciate some feedback. Thanks.
5.0 Rating Customer Service - 3/6/2012Ammo 5.56 NATO Federal BTHP 62 Grain 20 Round Box MK318 MOD-O USMC "SOST" Match Bullet 2925 fps5.0000
Reviewer: Michael
Ammo is great. I did have an issue with this order. My order was shorted by 5 boxes of this ammo. Thanks to the customer service crew for resolving this and getting my order corrected within a week. Good Job, CTD. Five bullets for customer service.
4.0 Rating Great Ammo - 2/10/2012Ammo 5.56 NATO Federal BTHP 62 Grain 20 Round Box MK318 MOD-O USMC "SOST" Match Bullet 2925 fps4.0000
Reviewer: Michael
Great ammo. Feeds well, and very closely matched to the 62g Green Tip out of my 16' Bushmaster with ACOG. Seems to be fairly clean as well. Definitely stocking up. Only reason it doesn't get 5 stars is the price.
5.0 Rating Excellent - 2/1/2012Ammo 5.56 NATO Federal BTHP 62 Grain 20 Round Box MK318 MOD-O USMC "SOST" Match Bullet 2925 fps5.0000
Reviewer: Load Test
Bought half a case - tested from bipod in 14.5" BCM carbine, 5-shots @25 and @100. The @25 was one hole .50", 3 of @100 were one hole with 1" flyers at 12 and 3 (likely the shooter). Much tighter groups than any of my M855. More consistent than the TAP FPD 75gr, faster and more accurate than the BVAC 62gr, similar to but better consistency @100 than the Fusion 62gr. Cannelure and crimp is good. No sealant on primer. To be clear, the brown box is not mil-spec, it is civilian "loaded similar to MK318".
5.0 Rating Impact test - 1/16/2012Ammo 5.56 NATO Federal BTHP 62 Grain 20 Round Box MK318 MOD-O USMC "SOST" Match Bullet 2925 fps5.0000
Reviewer: Mizzoubi
Fired several into test medium of half gallon jug of water backed by white wood 2x, 14" wet newsprint, and another 2X. Jugs "mistified" more impressively than by Partizan 69 HPBT used as comparison. There was lead wash around entrance to 2x. Exit from 2x was much smaller than 69 HPBT, same for the destruction channel in wetlap. Penetrated about nine inches of wetlap. Recovered bullets consisted of solid bases expanded to about .26 just forward of crimping groove; front core missing. The 69 HPBT fragments played out by 7 inches. This is gonna be good game ammo, not just SHTF, though richochets may be more of a concern than with traditional HP's.
 
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Ammo 5.56 NATO Federal BTHP 62 Grain 20 Round Box MK318 MOD-O USMC SOST Match Bullet 2925 fps
Ammo 5.56 NATO Federal BTHP 62 Grain 20 Round Box MK318 MOD-O USMC SOST Match Bullet 2925 fps		x