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Posted: 3/26/2021 12:13:20 PM EDT
I have a few 11.5" SBRs, a 10.3" pistol and a few 16" carbines that I use for HD. My property is heavily wooded and mountainous so effective range of 75-100 yards is adequate.
I have a few boxes of each, 77gr Magtech CBC mk262 clone and 75gr Speer Gold Dot. It's either that or M193. I'm thinking of using the 75gr for the SBRs and 77gr for the 16" carbines. Does that sound right, or do I have it backwards? What do you guys think? |
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I’d do GD’s for everything, but sure. Actually if the range is <100, I’d just keep GD’s in the 10.3 and not worry about the 16”.
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The difference is so small at those ranges it's whatever you can get firstly, then whichever is less costly
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I'm not a fan of Mk262. If you have enough gold dot to feed both rifles I suggest using it in both, that way you don't have to worry about getting mags switched up in an emergency. The gold dot is by far the better bullet, but if you only have enough for one rifle you are correct. Use the gold dot in the 11.5 and the mk262 in the 16".
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Quoted: I'd do GD's for everything, but sure. Actually if the range is <100, I'd just keep GD's in the 10.3 and not worry about the 16". View Quote So I figured I'd rezero my SBRs for them since they (the SBRs) are velocity challenged. Currently everything is already zeroed for mk262. |
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Quoted: I'm not a fan of Mk262. If you have enough gold dot to feed both rifles I suggest using it in both, that way you don't have to worry about getting mags switched up in an emergency. The gold dot is by far the better bullet, but if you only have enough for one rifle you are correct. Use the gold dot in the 11.5 and the mk262 in the 16". View Quote |
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Gold dots for both, but see if you can get your hands on some of the pine valley munitions 5.56 gold dots. The regular .223 Speer gold dots are going to be pretty slow coming out of an 11.5”. Even if you can’t, gold dots are the way to go.
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I agree with everyone else, the GD 75 is the better bullet. I'm heavily invested in the MK262 clones but would rather it was all Gold Dot.
Ideally, you should test both loads in the guns you may use them in to see how they group. I bet both will be pretty close POA, POI out to 100yards. Some guns will prefer one over the other. |
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Quoted: You won't be giving up much, if anything, in accuracy with the 75 grain Gold Dot. https://www.ar15.com/media/mediaFiles/28568/speer_75_gold_dot_10_shot_group_02__1_-1880707.jpg .... View Quote |
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My experience on paper is similar to Molon's, they shoot every bit as good as MK262.
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I like Gold Dots,I was sighting in a p&w 14.5” today with them. Shoots nice groups at 50 with the red dot sight. All my fighting rifles are loaded with them.
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I wish Pine Valley would get more of those Gold Dot bullets in. Even at 5.56 appropriate pressures they performed very well
5.56x45mm, 75gr Gold Dot, Pine Valley Munitions Review |
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Quoted: Gold dots for both, but see if you can get your hands on some of the pine valley munitions 5.56 gold dots. The regular .223 Speer gold dots are going to be pretty slow coming out of an 11.5”. Even if you can’t, gold dots are the way to go. View Quote It is a damn shame that the Pine Valley's 5.56MM 75GR. Gold Dot load got sidetracked/derailed by the Covid-19 pandemic. IMO, they had picked a winning combination and were about to reap some serious financial/reputation rewards on their foresight. Also very sad that Pine Valley is veteran owned. Veteran owners go out of their way to employ fellow veterans whenever possibly. So I would imagine that a number of vets at Pine Valley have been negatively affected by this pandemic. About the only negative things I can say about the 75GR. Gold Dot is that the SPEER factory claimed BC of .4 does not sound/look/test to be realistic & the factory SPEER .223 75GR. Gold Dot load I evaluated was very slow. Might have been just a weak .223 pressure LOT with poor QC on MV. But the 75GR. Gold Dot bullet itself is top shelf for LE/SD/HD/hunting use IMO. A 5.56MM NATO 75GR. Gold Dot load should be effective on flesh & bone targets out to 250-400yds. + when fired from a carbine/rifle depending on barrel length. And it has proven to be sub-MOA accurate out to 600yds. when fired from an accurized 18" SPR type barrel w M4 can at an observed BC of approx. .330-.335 @2905 FPS MV. .02 75GR. Gold Dot over 5.56MM NATO TAC handload in new #41 primed LC 5.56MM brass with 2.255" COAL: This testing was done before Pine Valley introduced their factory 5.56MM load. Attached File |
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Why did Speer stop the 5.56 75gr GD offering? It seems from the PVM test those 5.56 velocities/pressures are giving us very good 10.5" performance..
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Quoted: Speer never offered a 5.56 loading of the 75 grain Gold Dot. They did offer for a short while a 5.56 loading of the 64 grain Gold Dot. The SKU number for the 5.56 load of the 64 grain Gpld Dot was 24456. The SKU for the 223 Remington 64 grain Gold Dot load is 24448. 5.56 load https://www.ar15.com/media/mediaFiles/28568/speer_64_gold_dot_556_box_01-1883206.jpg 223 Remington load https://www.ar15.com/media/mediaFiles/28568/64_gold_dot_boxes_03-1883205.jpg The velocity increase of the 5.56 load was miniscule. The lot that I chronographed from a 20” Colt barrel had a muzzle velocity of 2834 FPS with a standard deviation of 17 FPS. The velocity of the 223 Remington loads averaged 2798 FPS with a standard deviation of 16 FPS, when chronographed from the same 20” Colt barrel. https://www.ar15.com/media/mediaFiles/28568/64_grain_colg_dot_muzzle_velocities_01-1883198.jpg The accuracy/precision of the 5.56 lot that I tested was not on par with the 223 Remington loads, though it was still quite good for a bonded soft-point. https://www.ar15.com/media/mediaFiles/28568/speer_64_gold_dot_10_shot_group_at_100_y-1883200.jpg https://www.ar15.com/media/mediaFiles/28568/speer_556_64_gold_dot_10_shot_group_at_1-1883202.jpg … View Quote As always, great work. |
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Quoted: It is a damn shame that the Pine Valley's 5.56MM 75GR. Gold Dot load got sidetracked/derailed by the Covid-19 pandemic. IMO, they had picked a winning combination and were about to reap some serious financial/reputation rewards on their foresight. View Quote View All Quotes View All Quotes Quoted: It is a damn shame that the Pine Valley's 5.56MM 75GR. Gold Dot load got sidetracked/derailed by the Covid-19 pandemic. IMO, they had picked a winning combination and were about to reap some serious financial/reputation rewards on their foresight. Quoted: I wish Pine Valley would get more of those Gold Dot bullets in. |
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If I had the choice I'd go with the GD in all.
I don't have the choice due to money so make do with M855 or M193. At under 100 yards either will work really well even out of a short barrel. |
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Quoted: Not really, no View Quote I agree, especially from a short barrel. That is when you NEED the better ammo. Naturally you use what you have but seek out something better than FMJ. As an aside, I like the 55gr GD for short barrels as it seems efficient with velocity and the expansion distance threshold. |
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Quoted: That's why I never go with boutique loads for SD/HD. I'm sure the PV folks are great and make excellent ammo. I just like to consolidate on loads that I can obtain from multiple sources and/or maybe even obtain through trade/barter. View Quote In the simplest of terms, I look for 5.56MM ammunition that actually kills flesh & bone targets quickly. Buying ammunition for possible trade or barter has zero influence on what I buy. The lowly 9MM FMJ BALL round will kill. And it has. But unless you hit the CNS thru diligent practice or blind luck, it may take a while. And some of the critters I interact with will be more than happy to rip me up if I don't make a quick and clean job out of putting them on the ground permanently. 5.56MM TMK/TSX/CCCu/Gold Dot loads normally kill quickly with a single round to the chest cavity. But I find it best to keep shooting until flesh & bone targets are down & done. If Pine Valley gets more 5.56MM 75GR. Gold Dot in stock, I will be more than happy to buy some. Same with BHA's 5.56MM 62GR. CCCu DP load. I can think of nothing better to do with this latest stipend our feather merchant leaders sent me than to buy ammunition. Yes, I will very much enjoy "stimulating" an ammunition company with some business paid for with my stimulus money. And I don't particularly care whether the feather merchants like it or not! Well, time for me to go pack the truck up with guns-n-ammo for another extended hunt/shoot. But I surely hope I don't miss out on any of that fine PVM 5.56MM 75GR. Gold Dot boutique ammo while I am gone. |
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Quoted: In the simplest of terms, I look for 5.56MM ammunition that actually kills flesh & bone targets quickly. Buying ammunition for possible trade or barter has zero influence on what I buy. The lowly 9MM FMJ BALL round will kill. And it has. But unless you hit the CNS thru diligent practice or blind luck, it may take a while. And some of the critters I interact with will be more than happy to rip me up if I don't make a quick and clean job out of putting them on the ground permanently. 5.56MM TMK/TSX/CCCu/Gold Dot loads normally kill quickly with a single round to the chest cavity. But I find it best to keep shooting until flesh & bone targets are down & done. If Pine Valley gets more 5.56MM 75GR. Gold Dot in stock, I will be more than happy to buy some. Same with BHA's 5.56MM 62GR. CCCu DP load. I can think of nothing better to do with this latest stipend our feather merchant leaders sent me than to buy ammunition. Yes, I will very much enjoy "stimulating" an ammunition company with some business paid for with my stimulus money. And I don't particularly care whether the feather merchants like it or not! Well, time for me to go pack the truck up with guns-n-ammo for another extended hunt/shoot. But I surely hope I don't miss out on any of that fine PVM 5.56MM 75GR. Gold Dot boutique ammo while I am gone. View Quote Quick question, if you don't mind: Have you ever tested for the expansion boundary for 77 gr TMK? The lowest velocity successful result I have found is 1753 FPS, with an anecdote reporting that they failed to expand at 1600 FPS, so I am assuming that the number is somewhere around 1650-1700 FPS. I haven't been able to narrow it down any further than that. |
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Quoted: Quick question, if you don't mind: Have you ever tested for the expansion boundary for 77 gr TMK? The lowest velocity successful result I have found is 1753 FPS, with an anecdote reporting that they failed to expand at 1600 FPS, so I am assuming that the number is somewhere around 1650-1700 FPS. I haven't been able to narrow it down any further than that. View Quote I have tested it, but not that low (below). 1753 FPS impact velocity for minimum expansion threshold is lower than I thought. Good to know. Thanks. BHA has done simulations to test the threshold of their 77GR. TMK bullet (also below). Attached File BHA gel test of 77GR. TMK @1920 FPS impact velocity: As you can see, the BHA 77GR. TMK will still yield a very respectable level of terminal performance at this impact velocity. The non-expanding 77GR. SMK OTM will not fragment at all at this low of an impact velocity. Attached File |
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Quoted: I have a few 11.5" SBRs, a 10.3" pistol and a few 16" carbines that I use for HD. My property is heavily wooded and mountainous so effective range of 75-100 yards is adequate. I have a few boxes of each, 77gr Magtech CBC mk262 clone and 75gr Speer Gold Dot. It's either that or M193. I'm thinking of using the 75gr for the SBRs and 77gr for the 16" carbines. Does that sound right, or do I have it backwards? What do you guys think? View Quote That's exactly what I do and have been doing for so long that I don't even remember what brought me to that conclusion. |
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I have been seeing some incredible performance from the 75gr GD’s out of a 16” 1:8 twist barrel (I think they were designed with SBR’s in mind). Accurate and devastating in soft tissue. Never tested barrier performance, but just guessing by the retained weight and other tests I’ve seen online - I suspect it would be a pretty decent barrier blind round.
Got incredibly lucky and sourced about 250 rds of 75GD for basically pre-pandemic prices. I always preferred federal over Speer when it comes to handgun SJHP’s because I had some really bad results from a couple boxes of 9x19 G2’s - so I never looked into the .223 GD’s. Now I wish I would have looked into them sooner, they are excellent! I’d still like to get some gel and do some proper tests with 77gr/75gr OTM’s in comparison to the 75GD’s and the typical 62gr/64gr SP’s that I’ve been using for years. BUT, so far I’m seeing better “tissue damage“ in white tails and small hogs from the 75gr GD’s in comparison to what I’ve seen from the 62gr version of the GD or the fed fusion. I think the 62gr bullet might even be the same exact thing in both fusion and GD - but I’m not 100% positive. My cousin likes the civilian fbit3 (I think it’s called LE223T1) but after I gave him a box of the 75gr GD’s - he’s trying to find sellers online to update his stockpile. Those 75gr GD’s are some of the best .223 ammo you can get in my opinion.,, |
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I prefer heavier bullets for short barrels, but anything 69 grain and up seems to be excellent out if a 10.5". I think I would lean towards 77 grain in the shorter barrel, but I doubt it makes much difference.
I also load my heavier rounds with faster powder. Usually IMR4198. I use VV140 or Ramshot TAC for rounds loaded for 14.5 or 16" carbines. Im my mind the heavier bullet can compensate for some of the loss in velocity. Momentum = mass times velocity. Admittedly, I dont know much about expansion thresholds, so opinions with that info absolutely supersede my opinion. |
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I would buy or load the optimum I could find to A) get good zeroes to known distance-to-target and angles ("Registering" those targets in mortar-artillery parlance); 2) practice shooting those particular target angles; and 3) have enough on reserve for the day.
If there's anything that serves as cover or concealment you'll probably want to try to see which of your choices will bust through at full summer foliage, and find your wood-timber-fence-brush penetration round. Having a few 30-rounders without confirming is hopeful but not particularly realistic if you've never confirmed your choice. You might have to shoot those distances and angles that match what you want, but may not be on your own homestead / property. |
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I loaded up on 64 gr Gold dots. My only regret is that I did not buy a metric ton of them back when they they were plentiful and reasonably priced. It was Molons threads that put me onto them. As usual his information is always well presented and spot on. I did pick up some 75 grain but those remain unfired to date.
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Quoted: Speer never offered a 5.56 loading of the 75 grain Gold Dot. They did offer for a short while a 5.56 loading of the 64 grain Gold Dot. The SKU number for the 5.56 load of the 64 grain Gpld Dot was 24456. The SKU for the 223 Remington 64 grain Gold Dot load is 24448. 5.56 load https://www.ar15.com/media/mediaFiles/28568/speer_64_gold_dot_556_box_01-1883206.jpg 223 Remington load https://www.ar15.com/media/mediaFiles/28568/64_gold_dot_boxes_03-1883205.jpg The velocity increase of the 5.56 load was miniscule. The lot that I chronographed from a 20” Colt barrel had a muzzle velocity of 2834 FPS with a standard deviation of 17 FPS. The velocity of the 223 Remington loads averaged 2798 FPS with a standard deviation of 16 FPS, when chronographed from the same 20” Colt barrel. https://www.ar15.com/media/mediaFiles/28568/64_grain_colg_dot_muzzle_velocities_01-1883198.jpg The accuracy/precision of the 5.56 lot that I tested was not on par with the 223 Remington loads, though it was still quite good for a bonded soft-point. https://www.ar15.com/media/mediaFiles/28568/speer_64_gold_dot_10_shot_group_at_100_y-1883200.jpg https://www.ar15.com/media/mediaFiles/28568/speer_556_64_gold_dot_10_shot_group_at_1-1883202.jpg … View Quote Have you done any comparison with the 64gr Gold Dot's vs 62gr? I had several boxes of the 64gr factory ammo that worked great in several of my AR's & decided to get the bullets to load up some clones of the factory ammo. When I went to buy the bullets I didn't even notice they were 62gr instead of 64gr. I am hoping I can still get similar results when I get around to reloading them, since I hope the 2gr of weight won't make that much of a difference in otherwise identical bullets. |
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Quoted: Speer never offered a 5.56 loading of the 75 grain Gold Dot. They did offer for a short while a 5.56 loading of the 64 grain Gold Dot. The SKU number for the 5.56 load of the 64 grain Gpld Dot was 24456. The SKU for the 223 Remington 64 grain Gold Dot load is 24448. 5.56 load https://www.ar15.com/media/mediaFiles/28568/speer_64_gold_dot_556_box_01-1883206.jpg 223 Remington load https://www.ar15.com/media/mediaFiles/28568/64_gold_dot_boxes_03-1883205.jpg The velocity increase of the 5.56 load was miniscule. The lot that I chronographed from a 20” Colt barrel had a muzzle velocity of 2834 FPS with a standard deviation of 17 FPS. The velocity of the 223 Remington loads averaged 2798 FPS with a standard deviation of 16 FPS, when chronographed from the same 20” Colt barrel. https://www.ar15.com/media/mediaFiles/28568/64_grain_colg_dot_muzzle_velocities_01-1883198.jpg The accuracy/precision of the 5.56 lot that I tested was not on par with the 223 Remington loads, though it was still quite good for a bonded soft-point. https://www.ar15.com/media/mediaFiles/28568/speer_64_gold_dot_10_shot_group_at_100_y-1883200.jpg https://www.ar15.com/media/mediaFiles/28568/speer_556_64_gold_dot_10_shot_group_at_1-1883202.jpg … View Quote Attached File Wow, 100 FPS difference between a 14.5" and 16" barrel! Makes me especially glad that I don't own a 14.5" barrel especially as the length difference between the two is only 1" when the 14.5" has to be pinned and welded to 16". 100fps velocity loss for 1" difference? No thank you! |
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Quoted: https://www.ar15.com/media/mediaFiles/28568/64_grain_colg_dot_muzzle_velocities_01-1883198.jpg Wow, 100 FPS difference between a 14.5" and 16" barrel! Makes me especially glad that I don't own a 14.5" barrel especially as the length difference between the two is only 1" when the 14.5" has to be pinned and welded to 16". 100fps velocity loss for 1" difference? No thank you! View Quote What's even worse is the fps of the .223 pressure 62/64gr gold dot in comparison to that of a proper 5.56 load. You're more or less getting the same velocities with a 62/64gr 5.56 load out of a 10.5-11.5" barrel as you are with this load out of a 16". Shame, since the gold dots are such amazing bullets. I suppose the only solution is to load your own. At least the fusion msr is a bit faster, albeit still only at the higher end of .223 or lower end of 5.56, velocity wise. |
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That sounds quite reasonable. 77gr OTM is well suited for the longer rifles since it's extremely precise and has good flight characteristics. Gold dot is less oriented towards long range use due to the lower muzzle velocity, but it has a very good reputation for low velocity expansion so it's well suited to the shorter guns.
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Quoted: https://www.ar15.com/media/mediaFiles/28568/64_grain_colg_dot_muzzle_velocities_01-1883198.jpg Wow, 100 FPS difference between a 14.5" and 16" barrel! Makes me especially glad that I don't own a 14.5" barrel especially as the length difference between the two is only 1" when the 14.5" has to be pinned and welded to 16". 100fps velocity loss for 1" difference? No thank you! View Quote |
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Quoted: Probably just a looser bore in that 14.5". View Quote View All Quotes View All Quotes Quoted: Quoted: https://www.ar15.com/media/mediaFiles/28568/64_grain_colg_dot_muzzle_velocities_01-1883198.jpg Wow, 100 FPS difference between a 14.5" and 16" barrel! Makes me especially glad that I don't own a 14.5" barrel especially as the length difference between the two is only 1" when the 14.5" has to be pinned and welded to 16". 100fps velocity loss for 1" difference? No thank you! Was my assumption. Different barrels of the same length can give fairly different velocities. Hell, sometimes shorter barrels can produce higher velocities than longer barrels. |
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Quoted: Probably just a looser bore in that 14.5". View Quote View All Quotes View All Quotes Quoted: Quoted: https://www.ar15.com/media/mediaFiles/28568/64_grain_colg_dot_muzzle_velocities_01-1883198.jpg Wow, 100 FPS difference between a 14.5" and 16" barrel! Makes me especially glad that I don't own a 14.5" barrel especially as the length difference between the two is only 1" when the 14.5" has to be pinned and welded to 16". 100fps velocity loss for 1" difference? No thank you! Considering that it's well documented that 16" barrels have ~ 100 fps higher muzzle velocity with M193 and M855, I think that's just the performance between those two barrels. One of the reasons I'm not a big fan of 14.5" barrels. |
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Quoted: https://www.ar15.com/media/mediaFiles/28568/64_grain_colg_dot_muzzle_velocities_01-1883198.jpg Wow, 100 FPS difference between a 14.5" and 16" barrel! Makes me especially glad that I don't own a 14.5" barrel especially as the length difference between the two is only 1" when the 14.5" has to be pinned and welded to 16". 100fps velocity loss for 1" difference? No thank you! View Quote I hear if you give it a good shake it will allow the powder to mix better giving it higher muzzle velocity. |
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Quoted: Those in the know are in the know. That's all I'll say on that. View Quote Also: Shake yer ammo |
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