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Posted: 11/1/2001 8:45:03 AM EDT
I am just curious as to why many people I see posting here prefer 55gr .223. over 60 and 62gr type. Why not fire the heavier bullet?

Link Posted: 11/1/2001 8:47:04 AM EDT
Price, their cheaper.

Mike
Link Posted: 11/1/2001 9:04:29 AM EDT
And a whole lot more abundant.
Link Posted: 11/1/2001 9:33:41 AM EDT
Same reason here...cheap blasting ammo.
Link Posted: 11/1/2001 9:36:14 AM EDT
[Last Edit: 11/1/2001 9:31:23 AM EDT by Kevin]
Link Posted: 11/1/2001 9:40:17 AM EDT
Cheap and easier to get. Heavier bullet loads are expensive and harder to get. They are nice to have. Why pay for something that cost two times more and get half rounds to shoot.
Link Posted: 11/1/2001 11:00:08 AM EDT
[Last Edit: 11/1/2001 10:53:52 AM EDT by Avalon01]
Because my TA01 ACOG is designed for the 55gr bullet.

Av.
Link Posted: 11/1/2001 11:16:24 AM EDT
OK, I understand the main use of 55gr is for "blasting ammo". I am looking into getting a few hundred 55gr Win for an upcoming TRNG excercise myself. However, for low volume loads like hunting and reloading, I like to use the heavier 60gr bullet.
I get 2900 FPS out of my reloads with 60gr. A little more lead for the energy factor.

Last question:

Are not the A2 sights intended for use with the 62gr bullet?

Link Posted: 11/1/2001 11:36:46 AM EDT

Are not the A2 sights intended for use with the 62gr bullet?


Sights have absolutely NOTHING to do with any bullet weight with any firearm. Sights are designed to fit the gun, not a specific bullet weight.
Link Posted: 11/1/2001 11:41:56 AM EDT

Originally Posted By BobCole:
Sights have absolutely NOTHING to do with any bullet weight with any firearm. Sights are designed to fit the gun, not a specific bullet weight.



Except that any sight or scope that has a bullet drop compensator is constrained by the expected trajectory of the bullet.
Link Posted: 11/1/2001 12:33:48 PM EDT

Originally Posted By BobCole:

Are not the A2 sights intended for use with the 62gr bullet?


Sights have absolutely NOTHING to do with any bullet weight with any firearm. Sights are designed to fit the gun, not a specific bullet weight.



Not true in the A2's case. The elevation dial is calibrated for a 20" barrel shooting M855 (62gr).
Link Posted: 11/1/2001 12:39:09 PM EDT
I shoot 55gr stuff in general, but I keep a supply of 62gr (C77) on hand in case the S ever does actually HTF.
Link Posted: 11/1/2001 12:55:14 PM EDT
because my FNC is 1/12
Link Posted: 11/1/2001 1:04:43 PM EDT
[Last Edit: 11/1/2001 12:59:40 PM EDT by punkatomic]
A2 iron sights may be calibrated for the 62 grain bullet but the difference in drop over the 55 grain in battlefield distances of 300 meters or less, which is a long distance for iron sights, is not significant.
If you were to shoot at 500 to 800 meters the difference may be enough to get completely off a man sized target, but again, hitting a man sized target with iron sights at these extreme distances is no sure bet anyway.

55 grain can be used with A2 sights for all practical purposes.
Link Posted: 11/1/2001 1:17:06 PM EDT
My target gun has a 1:12 twist, and my range is only 100 yd long.
Link Posted: 11/1/2001 1:40:09 PM EDT
Because it shoots great in any of the twist barrels on the market, is cheaper than heavier bullets and makes one fine groundhog gun.
Link Posted: 11/1/2001 1:44:08 PM EDT
Because I have range cards for all my ammo and if its on with the cheap stuff, its on with my good stuff.

FYI, I shoot 53 gr MHP, M193, M855, 69 MHPBT, 77 MHPBT and 80 gr MHPBT

M193 is one minute(6") under M855 @ 600 yards. I doubt you armchair rangers can shoot well enough to see a difference. That bullet is still moving 1400 FPS at that range.

My 80 grainers drop 10" more than M855 but are still moving at 1600 FPS at 600. Still supersonic at 1000. FYI, that's TWICE the muzzle energy of a standard .22 LR at the muzzle.
Link Posted: 11/1/2001 2:08:08 PM EDT


Because they shoot fine in my 1-9 barrels. You just can't beat the component price on 55gr bullets for reloading GP ammo.
I load 69gr HPBTMKs also.
Link Posted: 11/1/2001 2:23:09 PM EDT
Link Posted: 11/1/2001 2:46:57 PM EDT
[Last Edit: 11/1/2001 3:00:58 PM EDT by Gargoyle]

Originally Posted By punkatomic:
hitting a man sized target with iron sights at these extreme distances is no sure bet anyway.



Where did you get your marksmanship instruction? As a Marine and I remember hitting(and still can hit) a man sized target 10 out of 10 times for the maximum points at the 500 yard range, and repeating it hundreds of times over with 62gr nato! On top of that, I trained many to do the very same thing, females included. (I only say this because all the female unqualifieds came to me for remedial instruction) Heck, I saw competitors at Perry during the "Rattle Battle" hit a man sized target at 600 yds quite effectively.

Ok...so, before you hate me for life, your quote:

""A2 iron sights may be calibrated for the 62 grain bullet but the difference in drop over the 55 grain in battlefield distances of 300 meters or less, which is a long distance for iron sights, is not significant."

I can see the logic in that statement "if" I see the trajectory difference between the two at those distances under 300yds. If that is the case, maybe a FSP adjustment would allow compatibility of the 55gr to the A2 rear sight elevation disk. (if even needed)

I'll see for myself on the range when my 55gr comes in.


Link Posted: 11/1/2001 2:51:06 PM EDT

Originally Posted By Forest:

Originally Posted By BobCole:

Are not the A2 sights intended for use with the 62gr bullet?


Sights have absolutely NOTHING to do with any bullet weight with any firearm. Sights are designed to fit the gun, not a specific bullet weight.



Not true in the A2's case. The elevation dial is calibrated for a 20" barrel shooting M855 (62gr).



That is what I have always thought. However, never firing any 55gr from an AR or A2 for that matter, I wasn't sure if a simple FSP adjustment would suffice for 55gr bullet path.
Link Posted: 11/1/2001 8:02:21 PM EDT
Gargoyle,

I won't hate you, so please understand, although you and I have exceptional marksmanship abilities, an average soldier is not going to hit that man-sized ten out of ten times at 800 meters.

800 meters is a long way and a man is quite a bit smaller than the front sight post.
Link Posted: 11/1/2001 8:24:34 PM EDT
55fmjs are cheap, knock down steel and put holes in paper. I mainly use 55fmjs for practical rifle matches.
VM
Link Posted: 11/2/2001 4:57:07 PM EDT

Originally Posted By Forest:

Originally Posted By BobCole:

Are not the A2 sights intended for use with the 62gr bullet?


Sights have absolutely NOTHING to do with any bullet weight with any firearm. Sights are designed to fit the gun, not a specific bullet weight.



Not true in the A2's case. The elevation dial is calibrated for a 20" barrel shooting M855 (62gr).



I beg to differ. I say the sight isn't really "calibrated" to any specific weight. There may be some sort of claim of "1 click= 1/4" MOA or some such, but in reality all it does is (as we all know) raise or lower the sight. Unless one has laid in several rds on a particular rifle, one isn't going to know anyway how many clicks move that particular rd how far, regardless of bullet weight.

The above is based on nothing more than opinion & your mileage may vary.
Link Posted: 11/2/2001 4:59:11 PM EDT
i use 55 for plinking but for accuracy in my ar the choice is the 69 smk.I also use 62 for plinking in my ar but you cant beat the cost of 55 fmj. btw all my ammo i reload.
Link Posted: 11/2/2001 5:16:49 PM EDT
Just something I thought some of you might not be thinking about. Yards and meters are 2 diff animals. 300 meters is farther than 300 yards. AR sights are based on meters, as is most everything in the military.
Link Posted: 11/2/2001 5:34:27 PM EDT

Originally Posted By BobCole:

I beg to differ. I say the sight isn't really "calibrated" to any specific weight. There may be some sort of claim of "1 click= 1/4" MOA or some such, but in reality all it does is (as we all know) raise or lower the sight. Unless one has laid in several rds on a particular rifle, one isn't going to know anyway how many clicks move that particular rd how far, regardless of bullet weight.

The above is based on nothing more than opinion & your mileage may vary.



Well, the A2 elevation disk is numbered from 8/3 to 7. So, for a disk to be pre-set as it is, it would have to be pre-set to some type of bullet trajectory. In addition, the disk is set to that "combat setting" of 8/3, then the disk is obviously calibrated. Otherwise, there would be no preset markings.

Link Posted: 11/2/2001 7:48:08 PM EDT
300 meters =330 yards
I can't guess to within 30 yards anyhow.
Link Posted: 11/3/2001 3:49:10 AM EDT
Why 55 Grain?
Let me see I usually am only shooting cardbroad,& it seems senseless to spend more money on fewer bullits, & have less practice.
Some of us are on a budget.
Link Posted: 11/3/2001 4:28:35 AM EDT
[Last Edit: 11/3/2001 4:27:06 AM EDT by TacCar]
Mostly because the accuracy and penetration of a heavier bullet out of a carbine length barrel is wasted. 55gr bullets perform generally as well out of short barrels(1/9 twist) as heavier bullets and stabilize better in the shorter lenghth without chewing up the barrel like the faster twist rate barrels for heavier bullets do. I got 55gr and 62 gr and a few in between. I don't go much heavier than 62 gr. If I was shooting a 20" barreled AR, I'd probably take advantage of a heavier bullet, but then for shots over 300 yds, I'd prefer a .308 semi-auto. I consider my AR a CQB weapon(what I'm most likely gonna need it for). They are capable of long range accuracy, but match rifles get a little more persnickedy in the reliability dept. I like something that is fast handeling, reliable, and still more accurate than the guy behind the trigger will likely be.
A 55gr bullet will still drop any varmit(2 legged type or any other) short of large game at CQB distances, even if some of them are wearing kevlar vests. It's still a highpowered rifle loading (and yea they're are cheaper to).
Link Posted: 11/4/2001 5:33:43 AM EDT
I use the 55gr. due to the fact it is the most stable bullet weight for my 1 in 10 barrel. Making it the most accurate round for my shooting pleasure.
Link Posted: 11/4/2001 12:49:27 PM EDT
Because I'm a cheap bastard.



"Do what you will,
just don't think that I'm going to plink with ammo that's $30 more a case than 55gr."
Link Posted: 11/4/2001 12:55:49 PM EDT

NoCompromise wrote:

because my FNC is 1/12




This is what heavier bullets out of an FNC (at 25 yards) do. The rounds are 62gr. Green Tip and (I believe) 68gr. Black Hills.

Link Posted: 11/4/2001 1:15:04 PM EDT
Cause they are The Cheapest bullets I could find that shoot straight out of my 1 in 13" twist .22 Hornet (an M6 Scout).

Reload for my Mini-14? a discouraging waste of time. (D@mn Bill Ruger).
Link Posted: 11/4/2001 1:29:06 PM EDT
Hmmmmmmmm....USMC Marksmanship Instructor at Parris Island living in Illinois. Why does that sound familiar? Oh yeah, its me......where you at in Illinois Gargoyle? Also when did you instruct? '93 and '94 here
Link Posted: 11/4/2001 1:33:18 PM EDT
[Last Edit: 11/4/2001 1:29:08 PM EDT by fight4yourrights]

Originally Posted By Gargoyle:
I am just curious as to why many people I see posting here prefer 55gr .223. over 60 and 62gr type. Why not fire the heavier bullet?




I don't, I shoot 5.56mm 55gr FMJ

. cheaper
. does the job at realistic distances
. fragmentation leads to great wound cavities. non-FMJ non-cannular bullets wouldn't do as much damage
Link Posted: 11/5/2001 5:27:25 AM EDT

Originally Posted By AFARR:

NoCompromise wrote:

because my FNC is 1/12




This is what heavier bullets out of an FNC (at 25 yards) do. The rounds are 62gr. Green Tip and (I believe) 68gr. Black Hills.




Had the same results with my 60gr out of my Rem 700VS .22-250 with 1/14 barrel.
Link Posted: 11/5/2001 9:39:07 AM EDT
I use 50grs over anything else. I don't use a 223 for anything over 300yds, and the 50's give me 1/2inch groups or better at 100yds. Besides the V-max makes prairie dogs explode. At ranges of over 300 I either use my 22-250 or my Armalite in 243.
Link Posted: 11/5/2001 11:44:05 AM EDT

Originally Posted By BobCole:

Are not the A2 sights intended for use with the 62gr bullet?


Sights have absolutely NOTHING to do with any bullet weight with any firearm. Sights are designed to fit the gun, not a specific bullet weight.



Yer dyin' on the wrong hill, son. I advise twice as much intelligence gathering as briefing on this subject - in other words, it might serve you well to keep your one mouth closed and your two ears open. You'll learn something, ah gar-on-tee.

shooter
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