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Posted: 9/8/2018 5:01:13 PM EDT
[#1]
I've done some reading on them, and the IMI is typically thought to be a bit hotter and a bit less accurate. Magtech is also a bit more expensive. Most people seem to prefer the Magtech.
Right now SGAmmo has Magtech for $0.55 per round, and Midway has IMI for .50 per round. |
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Posted: 9/8/2018 5:39:05 PM EDT
[#2]
Quote HistoryQuoted:
I've done some reading on them, and the IMI is typically thought to be a bit hotter and a bit less accurate. Magtech is also a bit more expensive. Most people seem to prefer the Magtech. Right now SGAmmo has Magtech for $0.55 per round, and Midway has IMI for .50 per round. |
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Posted: 9/8/2018 6:53:15 PM EDT
[#3]
I split a case of Magtech 77 gr OTM with a shooting partner. One thing I noticed was all my 1x7 barreled uppers clearly shoot better using it compared to XM855. Not that XM855 is match ammo. Makes them shoot 1.0 to 2.5 MOA on average versus the 3 to 4.5 MOA using 62 gr FMJ. Most of my shooting involves 4X ACOGs in supported firing position
Recently traded 20 rounds of Magtech 77 gr OTM with a member of my shooting club who had IMI Razor core 77 gr SMK for comparison. So far they seem on par, with Magtech ever so slightly more accurate that I wouldn't hesitate to buy IMI if that was the only brand available. Below is two 10 shot groups with Magtech 77 gr OTM out of an 18" SS WOA barrel with Wylde chamber, 1x7 twist, midlength gas system, and NF NSX scope set to 10X. Targets are at 150 yard line at my club, give or take. 200 yard line was too muddy that day. I only stagger the plates to avoid having shrapnel chew up the wood posts. The white aiming squares are 3.5"x3.5". I like the repeatability of this ammo versus run of the mill 55/62 gr FMJ.  Attached File |
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Posted: 9/9/2018 11:23:32 AM EDT
[#4]
Have tried both... Magtech 77gr OTM is more accurate, actually pretty much the same accuracy I got from the box of BH 77gr OTM I've also tried.
Depending on rifle, the Magtech is about 0.8-1.5MOA ammo, 10rd group at 100-300 yards. Depending on rifle, the IMI Razor 77gr OTM is about 1.5-2.75MOA ammo, 10rd group at 100-300 yards. |
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Posted: 9/13/2018 9:44:19 AM EDT
[#5]
Magtech shot tighter groups for me vs the IMI 77gr out of all my barrels except for one, 20" A4 clone preferred the IMI.
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Posted: 9/13/2018 10:12:40 AM EDT
[#6]
The Magtech shot a tad more accurate in my experience.
I didn’t chrono them, but the IMI seemed a tad hotter than Magtech’s load, although not as hot as real MK262 Mod 1. |
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Posted: 9/13/2018 1:37:12 PM EDT
[#7]
Between those 2 choices.. Magtech has been more precise for me.
IMI is typically faster loaded... but precision is more important to me. Various 77gr velocities... 16" barrel first , then 20". .... empty spaces still need chrono checks... ( To many irons in the fire.. Lol ) From here... https://www.ar15.com/forums/ar-15/Various-Chronograph-results-16-Middie-and-20-Rifle--223-5-56/16-676005/ Beck Ammo. 5.56 77gr SMK ...............................................Av. 2469, ES 34.....................Av. 2734, ES 8........... Black Hills 77gr 5.56 OTM .........LC 14 ( NATO Cross )............Av. 2592 , ES 21................Av. 2675 , ES 82..............Very accurate Black Hills 77gr 5.56 TMK .........WCC 14 ( NATO Cross )...........Av. 2636 , ES 54................Av. 2753 , ES 63..............Outstanding Accuracy. CBC 77gr 5.56.............................5.56 CBC 14..........................Av. 2577, ES 60..................Av. 2752, ES 75 CBC 77gr 5.56 PR 844 SMK ......5.56 CBC 12..........................Av. 2620 , ES 36.................Av. 2729 , ES 34...........These last two are labeled with different powders. CBC 77gr 5.56 WC732 SMK ......5.56 CBC 14..........................Av. 2640 , ES 52.................Av. 2712 , ES 50............ Creedmoor .223 77gr TMK............................................................................. Creedmoor .223 77gr OTM............................................................................. Corbon 77gr .223 MPR.................................................................................. Federal 77gr 5.56 "FC262"................................................................................. FGMM 77gr .223 SMK FGMM....F C 223 REM..........................Av. 2340 , ES 25................Av. 2411 , ES 33.............. Very good accuracy Fiocchi 77gr .223 SMK ..............G.F.L. 223 REM......................Av. 2390 , ES 96................Av. 2488 , ES 53............. about average accuracy for 77gr IMI 77gr 5.56 OTM..................IMI 13 variety of 2 digits.........Av. 2726 , ES 39..................Av. 2810 , ES 41........... Not the most accurate, but certainly a good value. Norma 77gr .223 TAC ...............norma 223 REM....................Av. 2430 , ES 75...................Av. 2550 , ES 68...........Average 77gr accuracy Nosler 77gr.223 CC...................NOSLER 223 REM................Av. 2440 , ES 28...................Av. 2569 , ES 36.......... I need more trigger time with this ammo PMC XTAC 77gr .223 SMK .......PMC 223 REM........................Av. 2350 , ES 62................Av. 2427 , ES 31............... Rem. 77gr .223 SMK .................R-P 223 REM..........................Av. 2468 , ES 73.................Av. 2563 , ES 39............. Sig Sauer 77gr SMK .223.................................................................................. Winc. 77gr 5.56.........................WCC 14 5.56MM....................Av 2566... ES 36..................Av 2676.... ES 20.............Decent speed, but there is faster. Winc. 77gr Match 5.56 _ _ _ .... WCC 14 5.56 MM...................Av. 2364 , ES 47................Av. 2468 , ES 54..............For a 5.56 round, this is very low velocity. |
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Posted: 9/14/2018 4:51:24 PM EDT
[#8]
I'm running the magtech 5.56 77 gr otm out of a 18inch green mountain barrel 1:8 twist 223 Wylde and it consistently shoots at moa or just under. It's my go to ammo for my spr and HD rifle. Last weekend I shot it out to 700 yards
I may try some imi stuff at some point but for now I'm sticking with magtech Eta I'm at 2740fps out of an 18inch barrel and 2643 out of a 16 inch Aero Precision barrel |
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Posted: 9/17/2018 11:10:03 AM EDT
[#9]
Another vote for the CBC/Magtech. In my Raineir 18" 1:8 twist wylde it shoots 1MOA or slightly better.
Here are four consecutive 5-shot groups of CBC at 100 yards.  Attached FileHere are four groups of IMI from the same rifle on the same day.  Attached FileThe CBC is now my go-to round for bench shooting. |
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Posted: 9/17/2018 11:22:16 AM EDT
[#10]
Tested the 2 side by side in my 16” Stealth. Magtech / CBC grouped better for sure
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Posted: 9/18/2018 5:14:41 PM EDT
[#11]
IMI is hot. I shot a box through a larue stealth 20 and one shot was WAY too hot at over 3000fps. 1.2 - 1.5 moa at 100 yds. 231fps ES.
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Posted: 9/19/2018 2:26:29 PM EDT
[#12]
The IMI 77 gr razor core has been my most accurate round. I typically test about 12 or 13 commercial rounds with each new rifle or barrel. The IMI is the only one I have been able to get consistent groups under 1 MoA, and then only through a Stealth barrel. I had a few really tight groups with the Magtec when I shot 3 round groups, around 0.5 to 0.7 MoA. But when I went to sets of 5 round groups, they all expanded up to 1" to 1.5" groups.
The IMI 77 gr is also the best performer in my 16" patrol rifle. It really depends on what your rifle likes. My rifles don't much care for Federal Gold Medal Match, although that is widely considered to be a really accurate round. You just have to find out what works for your rifle. |
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Posted: 10/5/2018 8:56:18 PM EDT
[#13]
Is 77grn good for SBR 11.5" barrel?
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Posted: 10/5/2018 9:51:51 PM EDT
[#14]
Quote HistoryQuoted:
Is 77grn good for SBR 11.5" barrel? Short neck, tons of fragging, good penetration. It's a great combination HD and match bullet. |
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Posted: 10/6/2018 9:44:45 AM EDT
[#15]
And the IMI 77 Razercore is unusually accurate in my 10.5 and 11.5 guns (PSA CHF). I was getting better groups with it than in my 14.7, 16" and 18" guns!!
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Posted: 10/6/2018 10:02:06 AM EDT
[#16]
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Posted: 10/8/2018 7:49:30 PM EDT
[#17]
I did another test with 30 rounds of Magtech 77 gr OTM using a "new" 20" Larue Stealth barrel w/rifle gas system, Wylde chamber, and 1x8 twist
1.4 MOA at 150 yards. Hoping when the barrel breaks in it will find a sweet spot < 1 MOA. |
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