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First AR-15... .17 hmr


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#1 OFFLINE   17HMRguy

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Posted Oct. 07 2012 - 09:10 PM

Hey Y'all!!! First time on the forums ever and im in the process of building my first AR. I already have my lower built and I am in the process of compiling the rest of te parts and accessories i will need.

A little about me:
Im a varmint hunter and very interested in small calliber rifles, under .22 cal mostly. I did the summer NRA gunsmithing program at Lassen community college an loved building my lower when before i had no interest in black rifles. Now, the only firearm on my mind is a .17 HMR AR-15. I have more expierence with this caliber than anyone i have ever met (along the lines of rounds fired, yes i know that sounded a bit cocky) and i love the way it acts. I have shot around 25,000 rounds of .17hmr (i go through about 500-750 rounds a week, pricey, i know) and taken game up to coyote from about 150 yards, squirrels and rabbits out to 300, and i punch paper around 500 yards with it.

Now this brings me to my mext point. I want a .17 hmr AR 15 to use as a varmint/target rifle that can also double as my bug out rifle. I am always stocked with .17hmr ammunition and because of where i live, its the only rifle cartridge i can shoot indoors at shooting ranges. I hve been looking at the alexander arms .17 hmr upper since it was released and have finally decided i just need to buy one. I am very confused as to how it works since there is no gas tube but still uses a buffer. Any clarification as to how it works would be great.

Heres the list of parts i plan to get:
Efx A1 buttstock
Hogue 12" free float handguard
Alexander Arms .17 hmr upper

I meed help as to which flip up sights i should get. I plan on replacing the front sight post with a crosshair style front sight.

Ill post pix of the franklin arms multi cal lower I have later. I meed to dig it out of a box from my recent move.


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#2 ONLINE   MontanaLon

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Posted Oct. 07 2012 - 11:02 PM

:welcome:
As I recall the Alexander upper doesn't actually use the buffer in the true sense. IIRC it uses a modified lower parts kit to retard the bolt when it cycles in addition to a recoil spring. There was a write up in shotgun news a while back I think that was very enlightening.


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#3 OFFLINE   Nwatson99

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Posted Oct. 07 2012 - 11:58 PM

Welcome to the Armory, can't wait to see pics and here how it shoots.


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#4 OFFLINE   newbe

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Posted Oct. 08 2012 - 12:19 AM

Never realized you could get and AR in .17 caliber! :thumbsup:


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#5 OFFLINE   Killer308

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Posted Oct. 08 2012 - 12:54 AM

One plus with a 17hmr is you don't have to use a bullet button since it's a rimfire cartridge.


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#6 OFFLINE   17HMRguy

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Posted Oct. 08 2012 - 01:34 AM

One plus with a 17hmr is you don't have to use a bullet button since it's a rimfire cartridge.


Thats what made me want one in .17hmr so badly. Bullet buttons serious annoy me but having the option to be able to have a normal mag release makes me feel childish. Lol. I figured since the .17 hmr gives the best accurracy and power out of a rimfire that it may be the right option for a cali legal ar15 (at least for me)

So heres the pix of my lower that i promised:

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#7 OFFLINE   CRE10

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Posted Oct. 08 2012 - 08:45 AM

Sounds cool. Be sure to update us along the way!


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Posted Oct. 08 2012 - 04:05 PM

Welcome aboard and I'm still trying to to wrap my head around throwing that lil bullet 500 yards wow. please share some targets i wanna see what kind of grouping you're getting?


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#9 OFFLINE   17HMRguy

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Posted Oct. 08 2012 - 05:09 PM

Welcome aboard and I'm still trying to to wrap my head around throwing that lil bullet 500 yards wow. please share some targets i wanna see what kind of grouping you're getting?


Yeah my first time at 300 yards took me an entire boc of ammo to hit he target once. Ive made a longer shot on an F class target before but im a little timid to even share the info becaus of the responses i get. People dont believe me even though jerry tierney was spotting for me and confirmed the shot.

Ill post my best 500 yard grouping i have. Ive shot 3 shot groupings at 100 yards that look like a one shot from a jarger caliber. Ill say it again tho, ive shot roughly 25000 rounds of .17hmr since i started shooting. I have an intimate knowledge of how this caliber reacts in winds (up to 30 mph at 100 yards and 20 at 300)


#10 OFFLINE   GLShooter

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Posted Oct. 08 2012 - 05:16 PM

Yeah my first time at 300 yards took me an entire boc of ammo to hit he target once. Ive made a longer shot on an F class target before but im a little timid to even share the info becaus of the responses i get. People dont believe me even though jerry tierney was spotting for me and confirmed the shot.

Ill post my best 500 yard grouping i have. Ive shot 3 shot groupings at 100 yards that look like a one shot from a jarger caliber. Ill say it again tho, ive shot roughly 25000 rounds of .17hmr since i started shooting. I have an intimate knowledge of how this caliber reacts in winds (up to 30 mph at 100 yards and 20 at 300)


So you found out it does drift, right? :rolleyes:

Greg

Edited by GLShooter, Oct. 08 2012 - 05:19 PM.



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#11 OFFLINE   17HMRguy

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Posted Oct. 08 2012 - 05:28 PM

So you found out it does drift, right?

Greg

Drift is an understatement at longer distances. Out to 100 its really not that bad. I mostly use kentucky wind doping, much like jerry tierney (i do not see myself as being nearly as good as him fyi, nor will i ever be)

Heres a couple 500 yard groups i recently shot up in the high desert around susanville:

Posted Image

This one is my best 500 yard grouping, again, on a windless day:

Posted Image

And here are my best overall groupings sho at 100 yards:

Posted Image


I compile all of my groupings into what i call my shooting bible so I can track data and progress based on loads, wind, and distance.

I probably have 100 groupings from my .17 in that book but the last pic is of my beat ever groupings.

Also, notice the groupings at 500 yards are about the size of the palm of my hand. I believe with a little luck you could take out a squirrel at this range but it would not have the same energy or explosiveness i love the .17 for. I hunt mostly at 50-200 yards. Paper punching is just fun.


#12 OFFLINE   GLShooter

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Posted Oct. 08 2012 - 05:45 PM

How much elevation in MOA on that group? What scope?

Greg


#13 OFFLINE   17HMRguy

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Posted Oct. 08 2012 - 06:44 PM

I switch between a nikon prostaff 3-9x40mm and a barska swat tactical 6-24x60mm. Anything over 300 yards an the barska gets thrown on because of the massive 60mm objective lense. Ill say it again, i use kentucky wind doping, not the little clicks or moa adjustment knobs. Too many variables to deal with. I get a real clear picture and good view of my target and can still watch the impact through my scope without needing a spotter. At 500 yards i get about 12-15 feet of drop depending on the round i use. 20gr cci Fmj's do best at long distance because of the BC but te 20gr hornaday xtp's are fairly good themselves to 300. Now when there is wind at those ranges, it turns ito a whole nother ballgame. It almost feels like miniature artilery. If you guys can take this for what it is ill show you my pix of a .17 hmr hole in an f class target along with all the pix of me with jerry tierney and our range day at the sac valley 1000 yard range and give you the specifics on the hail mary shot i made (no i dod not shoot a .17hmr at 1000 yards, however i wish i had the chance to try lol)

I can shoot a .17HMR at 500 yards, but hand me a .243 or .308 amd im useless. I just have an addiction the this little bugger.

Btw, thanks for the warm reception everybody. I hope to learn a bunch more about AR's and centerfires from you guys a i have been a rimfire/bolt action fanatic since i started shooting, but i feel like thats all going to change, at leastthe bolt action part lol. If i can make an AR as accurrate as my mossberg 817 i will be a happy camper.

Hopefully my knowledge of the .17hmr can benefit some of you on this forum, although i do understand its not usefil to most people. Just wait until i break out the photos of the kind of penetration you can get with a .17hmr... Your minds will explode like the little .17 does lol


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Posted Oct. 08 2012 - 06:57 PM

That's awesome for 500 yards on the .17HMR. So about how high were you aiming above the center to hit that at 500 yards?


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#15 OFFLINE   17HMRguy

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Posted Oct. 08 2012 - 07:21 PM

That's awesome for 500 yards on the .17HMR. So about how high were you aiming above the center to hit that at 500 yards?


Id guesstimate about 13 feet +/- 6" i could be wrong. I set the target on a piece of cardboard laid on the ground at the base of a tree that was about double my height and i was aiming almost to the top of the tree and about a foot and a half to two feet to the right. Its hard to gauge using kentucky wind doping. If i used moa adjustments on the scope i could give ypu a better, more accurrate andwer but thats really the best i can say. I honestly believe i was shooting closer to 520-530 yards but the tree was the only object i had to place a target on. So im just gonna say 500 because of the drop i expierenced. It took me 10 rounds to hit the target then i started shooting for the grouping.

The .17 hmr is a mih more capable round than it is given credit and i honestly believe could be a serious contender for SHTF scenarios, hence why im so obsessed. My buddy is taking pix of the abondoned hippie schoolbus on his proporty thay we used to shoot at regularly and just for the hell of it i shot the thick steel bumper with a 20 gr hornaday xtp. The penetration was astonishing. It penetrated the bumper and popped the rear tires... It was a huge suprise... It did not however, penetrate the hardened steel trailer hitch and threw yhe thin copper jacket back at me and bounced off my neck without leaving a scratch on me. So it has its limitations but it definatly is nowhere near as limited as most people say it is.


#16 OFFLINE   Alden

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Posted Oct. 08 2012 - 07:26 PM

That is MAD COOL!

A .17HMR AR!

I have a marlin 917 bolt rifle in this caliber, and let me tell you, it is a great bullet. Flat trajectory, no recoil, and it will flat out destroy any varmint up to 50-60 lbs. I've even seen it take wild hogs.


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Posted Oct. 08 2012 - 07:42 PM

If I ever got shot by a 17 HMR and found out about it, I would be pissed.


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Posted Oct. 08 2012 - 07:44 PM

Id guesstimate about 13 feet +/- 6" i could be wrong. I set the target on a piece of cardboard laid on the ground at the base of a tree that was about double my height and i was aiming almost to the top of the tree and about a foot and a half to two feet to the right. Its hard to gauge using kentucky wind doping. If i used moa adjustments on the scope i could give ypu a better, more accurrate andwer but thats really the best i can say. I honestly believe i was shooting closer to 520-530 yards but the tree was the only object i had to place a target on. So im just gonna say 500 because of the drop i expierenced. It took me 10 rounds to hit the target then i started shooting for the grouping.

The .17 hmr is a mih more capable round than it is given credit and i honestly believe could be a serious contender for SHTF scenarios, hence why im so obsessed. My buddy is taking pix of the abondoned hippie schoolbus on his proporty thay we used to shoot at regularly and just for the hell of it i shot the thick steel bumper with a 20 gr hornaday xtp. The penetration was astonishing. It penetrated the bumper and popped the rear tires... It was a huge suprise... It did not however, penetrate the hardened steel trailer hitch and threw yhe thin copper jacket back at me and bounced off my neck without leaving a scratch on me. So it has its limitations but it definatly is nowhere near as limited as most people say it is.


That isn't very smart. :no:


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Posted Oct. 08 2012 - 07:46 PM

If I ever got shot by a 17 HMR and found out about it, I would be pissed.

You mean to tell me that people can get shot by a 17hmr and NOT find out about it? :laugh: :wink:


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#20 OFFLINE   17HMRguy

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Posted Oct. 08 2012 - 07:56 PM

That is MAD COOL!

A .17HMR AR!

I have a marlin 917 bolt rifle in this caliber, and let me tell you, it is a great bullet. Flat trajectory, no recoil, and it will flat out destroy any varmint up to 50-60 lbs. I've even seen it take wild hogs.


The marlins are great. I personally have a mossberg 817 that i have put about 40 hours of work in at the gunsmithing school I attended this summer. I gave it a 2.5 lb trigger, finished the chamber with a chamber rheemer, refaced the barrel, and also recrowned it. I also have a custom 20 moa scope base i had made for it. The 817 is my baby but i have a feeling once my "AR-.17" is done it will be my new child lol.





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