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Posted: 3/28/2014 8:38:49 PM EDT
Old thread got locked for being off topic.
I shot some today at 100 yards from my BCM 16" Lightweight 1/7 Pencil Barrel Midlength. It was 70 degrees and very windy. I shot off the bench with front support, rear bag, and a SS 10x optic in an ADM mount. The rifle can be seen here Results: the IMI 77 OTM is the bottom group. Top group is Hornady 55 FMJ and the middle group is Hornady 52 HPBT.  The six shot cluster has a CTC of 0.882 and a MR of 0.341 !! |
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Posted: 3/29/2014 7:33:19 AM EDT
[#1]
Looks like a few flyers. Could be due to barrel heat with the pencil profile or maybe lack of stability. I'd try off a sled with a heavier barrel profile.
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Posted: 3/29/2014 9:31:15 AM EDT
[#2]
no, I don't think so. it was VERY windy, as I said. The little cluster represents what the ammo will do. I'm quite impressed. Hornady 75 gr match does not shoot near as well and costs nearly $1 a round.
But certainly a sled and heavier profile would help |
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Posted: 3/30/2014 6:53:32 PM EDT
[#3]
disregard.
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Posted: 3/31/2014 8:15:40 AM EDT
[#4]
Quote HistoryQuoted:
no, I don't think so. it was VERY windy, as I said. The little cluster represents what the ammo will do. I'm quite impressed. Hornady 75 gr match does not shoot near as well and costs nearly $1 a round. But certainly a sled and heavier profile would help i'd agree with you on the wind and the small cluster. i got the same results on a breezy day at 100yds when testing mine. overall a nice tight sub_MOA group with a couple fliers. wind can really ruin a 223 shooting session when you are going for groupings. |
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Posted: 3/31/2014 1:06:48 PM EDT
[#5]
I wonder if grouping at 100 yds is really a good test of this ammo. My impression is that Mk262 stabilizes better at longer ranges than shorter; a 200 or even 300 yard group might be more telling - though you're posting some decent groups regardless!
Sadly, I don't have access to a local long range any more, so that remains to be seen. Has anyone else tried that? |
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Posted: 4/1/2014 8:25:05 AM EDT
[#6]
Quote HistoryQuoted:
I wonder if grouping at 100 yds is really a good test of this ammo. My impression is that Mk262 stabilizes better at longer ranges than shorter; a 200 or even 300 yard group might be more telling that is a very interesting thought. off topic but i've experienced that same phenomena with my AR10 and prvi 147gr ammo. it sucks at 100 but is much tighter at 400. |
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Posted: 4/3/2014 1:46:25 PM EDT
[#7]
That shouldn't be possible. Rounds can not spread then contract the group would spread in zero wind exponentially until gravity pulled them into the earth
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Posted: 4/3/2014 1:47:39 PM EDT
[#8]
Where is round #10
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Posted: 4/3/2014 2:27:40 PM EDT
[#9]
Shot my first boxes of razor core today. I got some pretty damn good groups, I'm very impressed with this stuff. Much cheaper than the Black Hills 77SMK and just as accurate. Just ordered 5 more boxes today :)
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Posted: 4/3/2014 2:40:39 PM EDT
[#10]
where are you getting the IMI 77?
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Posted: 4/3/2014 3:50:25 PM EDT
[#11]
Quote HistoryQuoted:
That shouldn't be possible. Rounds can not spread then contract the group would spread in zero wind exponentially until gravity pulled them into the earth Correct. |
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Posted: 4/3/2014 3:50:54 PM EDT
[#12]
Quote HistoryQuoted:
where are you getting the IMI 77? Weidners has (or at least had) some. I'll be doing some gel tests shortly... |
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Posted: 4/6/2014 6:47:14 PM EDT
[#13]
Quote HistoryQuoted:
That shouldn't be possible. Rounds can not spread then contract the group would spread in zero wind exponentially until gravity pulled them into the earth Check this out: 
The angle of the projectile's yaw and pitch decreases as it stabilizes. What the poster was suggesting about testing the ammo at a further distance when the projectile has "settled down" or stabilized, is a valid concept. |
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Posted: 4/7/2014 10:39:11 AM EDT
[#14]
post voluntarily deleted as it was not on topic
 I apologize!
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Posted: 4/7/2014 12:11:34 PM EDT
[#15]
Quoted:Check this out:
The angle of the projectile's yaw and pitch decreases as it stabilizes. What the poster was suggesting about testing the ammo at a further distance when the projectile has "settled down" or stabilized, is a valid concept. Hey, thanks for finding that Mister_H. I'd heard the story about Mk262 from folks using it, but it's nice to have some data to back it up! I think in addition to that, it's the fact that's it's intended as a long-range round. While you can get sub-MOA groups at 100 with 55 grain, you won't at 400. Mk262 is intended to group a lot better at range compared to M193 or M855. |
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Posted: 4/10/2014 3:51:48 PM EDT
[#16]
Quote HistoryQuoted:
Check this out:  http://youtu.be/KH9SCbCBHaY
The angle of the projectile's yaw and pitch decreases as it stabilizes. What the poster was suggesting about testing the ammo at a further distance when the projectile has "settled down" or stabilized, is a valid concept. Quote HistoryQuoted:
Quoted:
That shouldn't be possible. Rounds can not spread then contract the group would spread in zero wind exponentially until gravity pulled them into the earth Check this out: http://youtu.be/KH9SCbCBHaY
The angle of the projectile's yaw and pitch decreases as it stabilizes. What the poster was suggesting about testing the ammo at a further distance when the projectile has "settled down" or stabilized, is a valid concept. Very interesting. Learned something today (or at least altered how I perceive downrange results). |
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Posted: 4/10/2014 3:52:28 PM EDT
[#17]
Edit:duplicate post
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Posted: 4/11/2014 10:12:09 AM EDT
[#18]
For those that don't know yet, as posted on Widener's home page
Please excuse the inconvenience!
Ordering via the web site has been temporarily terminated to allow for security and design upgrades. Phone orders in at 1-800-615-3006 as they are 3rd Party Processed and Secure! To all our customers: We have been a victim of a very sophisticated series of escalated attacks each of which was thwarted before the next one occurred. There was no way to predict where they would go next, but at this point, you are not taking any chances and have stopped taking credit cards on-line until you can develop a third party processing system that will eliminate any chance of another problem. Our phones have never been breeched and are processed by a 3rd party processing company. We will be running sales over the next few weeks to compensate our customers for the all the problems that they have had. If you've ordered from them in the past 3-6 months (or maybe even longer) it would be a good idea to check your CC transactions & probably order a new card. Although some who said they ordered a new card had multiple unauthorized purchases on their replacement as well. May want to get some type of credit monitoring service if you want more protection. Sorry to anyone who has to go through this B.S., good luck. |
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Posted: 4/11/2014 11:55:58 AM EDT
[#19]
Yes, and the Widener's security problems topic was what got the original thread discussing the ammunition locked and prompted this Part II thread.
Please keep the discussion on-topic, which is the ammunition, not the vendor. |
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Posted: 4/14/2014 7:19:50 AM EDT
[#20]
I've put a couple hundred rounds of the Razor Core thru a Colt LE6920 16" M4 w/1:7 twist. I've shot 55gr, 62gr M855, and the Razor Core thru this rifle @ 50yd, 100yd, and 200yd. I get better groups at all distances as the bullet weight (length) go up. The Razor Core gave about 1.5 MOA @ 200 yds. I'd love to try it at longer distance to see if the stabilization vs distance issue mentioned above plays out. I'm not a world class rifleman by any means. My groups may have been better if I was. I'm happy with the results and will be ordering more.
Shabo |
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Posted: 4/19/2014 7:25:40 PM EDT
[#21]
Has anyone tried this ammo from a 1/9 twist AR? My LTR bolt gun loves Hornady 75 OTMs, but my 16" and 20" ARs don't take them so well. Looking for an answer for the ARs with the 75 -77 gr loads.
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Posted: 4/20/2014 4:32:03 AM EDT
[#22]
Quote HistoryQuoted:
I've put a couple hundred rounds of the Razor Core thru a Colt LE6920 16" M4 w/1:7 twist. I've shot 55gr, 62gr M855, and the Razor Core thru this rifle @ 50yd, 100yd, and 200yd. I get better groups at all distances as the bullet weight (length) go up. The Razor Core gave about 1.5 MOA @ 200 yds. I'd love to try it at longer distance to see if the stabilization vs distance issue mentioned above plays out. I'm not a world class rifleman by any means. My groups may have been better if I was. I'm happy with the results and will be ordering more. Shabo This is good news to me as i have the same rifle. As soon as i get to target some i'll post up my results as well. |
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Posted: 4/20/2014 5:53:33 PM EDT
[#23]
I got to shoot a few mags of this ammo this morning and it is just as accurate in my Mk12 as the BH 262 is.
It also shot very accurate in my 11.5" gun. Very happy with it. Might order a couple of more cases. |
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Posted: 4/21/2014 5:52:17 AM EDT
[#24]
2K IMI Razor should last me the rest of this year....
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Posted: 4/24/2014 5:00:22 PM EDT
[#25]
MRW- Any plans to see if this load will stabilize in that RRA 5.56 1:9 barrel? I plan on testing it myself, just curious.
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Posted: 4/25/2014 3:21:00 AM EDT
[#26]
That's a good idea. That barrel shot the Hornady 75 grain pretty well, which surprised me. I'll try it.
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Posted: 4/25/2014 10:27:00 AM EDT
[#27]
I have shot Black Hills 77gr (not Mk262) in my 16" 1X9 Bushmaster and it shot well out to 100 yards, (under 2moa) which surprised me. This was at sea level at around 85 degrees. I'm sure it's on the edge of going unstable and any environmental change etc. will likely cause it to break lose. It's the same Sierra 77 bullet as in the Razor but I dont know what the extra velocity will do.
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Posted: 4/25/2014 10:54:58 AM EDT
[#28]
Subbbed this thread as I need a good 75-77 grain round as well to use in my SPR, 20" Stainless heavy, to Bushmaster Mforgery to 4 PSA 10.5's unfired/tested.
Good info, thanks for the data guys. 
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Posted: 4/25/2014 6:41:39 PM EDT
[#29]
Quote HistoryQuoted:
That's a good idea. That barrel shot the Hornady 75 grain pretty well, which surprised me. I'll try it. That is encouraging news, and thank you in advance. I primarily plan to use it in a BCM 14.5" 1:7, but I'm hoping it will stabilize in this barrel as well, in case I need it to. 
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Posted: 5/12/2014 4:45:39 AM EDT
[#30]
It seems to be identical to mk262 both accuracy and velocity-wise.
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Posted: 5/30/2014 9:37:12 AM EDT
[#31]
Can anybody who has received razor core recently from Wideners indicate what year the date stamps are on the brass? I think I saw they were getting a new shipment in, and wondered if it would be 2014-dated. Thanks.
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Posted: 5/30/2014 9:40:47 AM EDT
[#32]
It wouldn`t matter to me if I could afford some.
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Posted: 5/30/2014 1:23:28 PM EDT
[#33]
Quote HistoryQuoted:
Can anybody who has received razor core recently from Wideners indicate what year the date stamps are on the brass? I think I saw they were getting a new shipment in, and wondered if it would be 2014-dated. Thanks. +1 |
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Posted: 5/30/2014 4:17:57 PM EDT
[#34]
I ordered some boxes back in March from Widener's and all mine say IMI 13 on them.
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Posted: 5/31/2014 4:33:19 PM EDT
[#35]
Quote HistoryQuoted:
I ordered some boxes a few months ago from Widener's and all mine say IMI 13 on them. Same here from early April. |
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Posted: 6/8/2014 10:37:06 AM EDT
[#36]
So the consensus is its just as accurate as MK262?
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Posted: 6/8/2014 4:28:15 PM EDT
[#37]
Quote HistoryQuoted:
So the consensus is its just as accurate as MK262? Yes. It shoots the exact same for me. |
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Posted: 6/26/2014 8:27:12 AM EDT
[#38]
Shooting results from a 20" BCM free floated government profile upper. 95 degrees, little wind.
the bottom group is the IMI. I'll blame myself for the two corner shots.  |
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Posted: 6/27/2014 7:23:37 PM EDT
[#39]
You should be getting sub-moa with either load...
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Posted: 6/27/2014 8:23:10 PM EDT
[#40]
Post your 10 shot group from a GI barrel and we'll compare. Or just post a 10 shot group from any rifle. Let's see how you do.
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Posted: 7/3/2014 1:55:36 PM EDT
[#41]
Most of my rifles love the IMI 77gr. On average, it's about as accurate as BH MK262 but every rifle is a little different. If your rifle likes 77gr Sierra pills, it will likely do well with the IMI.
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Posted: 7/3/2014 4:14:19 PM EDT
[#42]
Can you only get this from wideners? That's all I'm finding.
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Posted: 7/3/2014 4:39:15 PM EDT
[#43]
Quote HistoryQuoted:
Correct. Quote HistoryQuoted:
Quoted:
That shouldn't be possible. Rounds can not spread then contract the group would spread in zero wind exponentially until gravity pulled them into the earth Correct. Meh, while that is technically correct, it is not uncommon for some rifles to shoot smaller groups (in MOA not total size) at longer ranges. For example a rifle that shoots a 1 inch group at 100 should shoot a 3 inch group at 300, but that rifle shoots a 2 inch group instead. |
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Posted: 7/4/2014 9:42:28 AM EDT
[#44]
I get terrible groups at 40 yards and better ones at 100+.
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Posted: 7/9/2014 6:24:09 PM EDT
[#45]
Here's 10 rounds slow fire through a RRA 1/9 twist lightweight midlength at 100 yards with a 10x optic. Not bad, but not great either. 1/9 may be a bit too slow of a twist for this ammo
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Posted: 7/11/2014 5:30:22 PM EDT
[#46]
Exit wound of 556 IMI 77 gr SMK @ 175 yards DRT.
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Posted: 7/13/2014 9:05:57 PM EDT
[#47]
LOL, this is getting too easy....IMI Razor Core strikes again!
I'm cruising down the forest road out back in the UTV with the FLIR M-324 running and see two distinct hot spots about 250 yards ahead, cut the engine and watch them darting out of the thick cover on the side of the road. Decide to exit the UTV and stalk up a little closer on the road with the FLIR T-70 to see if it is a couple of coons or possibly some hogs? Take a sitting position in the middle of the road (full moon coming up bright) and watch them in the thermal scope, decide they are in fact some hogs and about to get up to mosey in a bit closer when suddenly they both take off running right down the middle of the road towards me? Caught a little off balance but watch them keep coming, at 125 yard coming right at me I decide to take out the one on the left with a frontal head shot as this is too good to be true and don't want to have them run off into cover. BAM, he drops in his tracks with bullets between the eyes! Other dude halts in his tracks and looks his buddy over and three seconds later BAM - head shot and he drops in his tracks. Couple of 90 pounders are in the sausage grinder! 
Awesome! |
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Posted: 7/17/2014 6:18:24 PM EDT
[#48]
Headshot 225 yards using ACOG TA02/FLIR T-70, IMI Razor, DRT.
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Posted: 7/18/2014 9:40:06 AM EDT
[#49]
Quote HistoryQuoted:
Headshot 225 yards using ACOG TA02/FLIR T-70, IMI Razor, DRT. http://www.phossil.com/thom/Night%20Vision/FLIR%20T70/225%20Yard%20Coyote.jpg Man, I need to come hang out with you for a week. You are clearly having too much fun. Don't worry, I'll bring my own Razor Core!
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Posted: 7/18/2014 10:11:42 AM EDT
[#50]
Some testing I did earlier this year with some various 77gr rounds, including the IMI razorcore:
All testing was done with the chronograph at 10', from the supported prone position with an Aero Precision AR equipped with 16" CMMG 1/7-twist medium contour barrel (free floated), Gemtech G5 suppressor and Leupold MR/T 2.5-8X36 Scope. ~Results~ Black Hills White Box w/ 77gr Sierra OTM: Avg. Velocity=2724 SD=15 Group = 1.70" @ 100 yds. WCC Mk262 w/ 77gr Sierra OTM: Avg. Velocity= 2778 SD=12 Group=1.45" @ 100 yds (It would have been less than 1" but I broke my cheek weld mid-string to check the chronograph which resulted in 2 groups on the target.) Israeli Mk262 w/ 77gr Sierra OTM: Avg. Velocity=2821 SD=22 Group=2.33" @ 100 yds (Great velocity but somewhat disappointing accuracy) Handload w/ 77gr Nosler OTM: Avg. Velocity=2740 SD=14 Group=1.40" @ 100 yds. ~Summary~ The Black Hills White Box ("factory seconds") performed as anticipated with reasonable velocity, standard deviation and accuracy for commercial ammo "seconds." I don't know what they're doing to that "real" Mk262, but it's just plain amazing. As anticipated, the Israeli has super-high velocity, but the consistency and accuracy aren't quite what I'm used to. |
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