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Range Report Springfield M21 with handloads

This is a discussion on Range Report Springfield M21 with handloads within the The M14 forums, part of the M14 M1A Forum category; I've been hitting the local range every now and then with either FGMM 168s or Black Hills Gold 175s. I try to go at least ...


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Old September 3rd, 2013, 06:54 PM   #1
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Wink Range Report Springfield M21 with handloads

I've been hitting the local range every now and then with either FGMM 168s or Black Hills Gold 175s. I try to go at least once a week if I can. I had also bought a lot of HSM 7.62 168gr Match when it was hard to find anything on the shelves so I still fire off a few rounds at the end of each session. I think I'm just going to shelve it for a while as personal surplus for later.

I have found out it is easier to only bring no more than two types of ammo to keep track of progress and record keeping ease. One ammo as the baseline and the other to see how it compares.

A few weeks ago I used Blackhills Gold 175gr BTHP Match at the local 100 yard range.

Bottom Left: BHG 175gr 1.36"
Bottom Right: BHG 175gr .71"
Top Left: BHG 175gr .88"
Top Right: BHG 175gr .57"

Center: HSM 168gr 1.47"

(the multiple markings on the target you see were done later that night after a "few" beers)



Like many out there I decided to begin handloading. This site had plenty of info to learn from along with the Hornady 9th reloading edition. (The search function works wonders)

The first batch I used the spent Black Hills Match cases. Tumbled them, cleaned the primer pockets, uniformed them and sized them and tumbled again before final loading.

Headspace: 1.631
Case length: 2.010
Powder: 41.5 gr IMR 4895
Primer: CCI #200
Bullet: Hornady 168gr BTHP
OAL: 2.805

I went over to Eastern Washington to use the 100/200/300 yard range.

100 yard range

Bottom: Handload - 1.04"
Bottom Left: Handload - 1.30"
Bottom Right: Handload - 1.35"
Center: Handload - 1.47"

Top Left: HSM 168gr - 1.98" (last rounds of the day)
Top Right: HSM 168gr - 1.57" (last rounds of the day)




200 yard range

Center: Handload - 2.14"




300 yard range

Bottom Center: FGMM 168gr - 2.94"
Center: Handloads - 6+"



All in all I had fun first and foremost. My first loads turned out better than I thought so I am definitly happy with that. My groups keep improving so double bonus.

And here is my Rifle



Not sure what happened with my handloads at the 300 yard range.

I have reloaded the Black Hills again with one change on the headspace to 1.632. All of my spent cases come out reading 1.634. The rifle came from Springfield tagged with a headspace of 1.631. ????

In a few days back to the local 100 yard range. Happy Happy Happy

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Old September 3rd, 2013, 07:03 PM   #2
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you set the bar pretty high there, i'd be real happy too.

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Old September 3rd, 2013, 09:40 PM   #3
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Great looking groups and an even better looking rifle!!!


Brandon

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Old September 3rd, 2013, 11:23 PM   #4
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That's some great shooting with the Black Hills. My groups at 100 yds are similar with my M21. At 300 I'm more of a 1.5 MOA shooter on average but I'm trying to tighten them up a bit.

Great looking rifle. Do you have your pad on over the built-in cheek riser?

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Old September 4th, 2013, 01:27 AM   #5
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Quote:
Originally Posted by bluto View Post
That's some great shooting with the Black Hills. My groups at 100 yds are similar with my M21. At 300 I'm more of a 1.5 MOA shooter on average but I'm trying to tighten them up a bit.

Great looking rifle. Do you have your pad on over the built-in cheek riser?
Thanks Bluto

On the 300 yard that day I used FGMM 168gr instead of the BH from the previous week seen in the first target picture.

I have placed the pad over the riser. I like the feel instead of rough wood and I think it looks a little bit better then seeing a gap in the stock.

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Old September 4th, 2013, 07:04 AM   #6
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Black Hills 175gr and 168gr Amax have been to most accurate factory loads out of my M21. They go consistantly under 1 moa. They average .75-.85 @ 100yds. When I get around to loading for it, maybe I'll stumble in something to beat them. Half moa or better is the goal. So far only the bolt gun is shooting that well. The M21 is close second, so I'm hopeful. The tragic thing is that my piston failed and needing a new one might mean a good deal of trial and error.

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Old September 4th, 2013, 08:00 AM   #7
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Beautiful! Thats where I'm going with my build! Great Job!

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Old September 4th, 2013, 08:46 AM   #8
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The tragic thing is that my piston failed
How does a piston fail?

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Old September 4th, 2013, 10:47 AM   #9
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Nice shooting! That rifle shows great potential, and the more you shoot it the smaller your groups will get.

One note, I'm not sure how you are checking the cartridge headspace length, but your casers should be sized at least .003" less than the chamber headspace, especially for a semi-auto rifle.

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Old September 4th, 2013, 11:47 AM   #10
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I'm using the RCBS Precision Mic to check my fired brass.

The brass mic's from 1.632 to 1.635 with 90% of the brass at 1.633 to 1.634. I turn the mic down on the brass till it's snug, but not enough pressure to leave a ring on the brass shoulder from turning the mic down to hard. Just till I feel a positive stop with light pressure.

I am looking at getting the Hornady L-n-L headspace gauge and Chamber All Bullet Comparator. I want to have a second method to double check my numbers.

I'll look at a few more reviews on others as well before I purchae my second set of headspace tools though.

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Old September 4th, 2013, 01:24 PM   #11
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Quote:
Originally Posted by 66Fastback View Post
I've been hitting the local range every now and then with either FGMM 168s or Black Hills Gold 175s. I try to go at least once a week if I can. I had also bought a lot of HSM 7.62 168gr Match when it was hard to find anything on the shelves so I still fire off a few rounds at the end of each session. I think I'm just going to shelve it for a while as personal surplus for later.

I have found out it is easier to only bring no more than two types of ammo to keep track of progress and record keeping ease. One ammo as the baseline and the other to see how it compares.

A few weeks ago I used Blackhills Gold 175gr BTHP Match at the local 100 yard range.

Bottom Left: BHG 175gr 1.36"
Bottom Right: BHG 175gr .71"
Top Left: BHG 175gr .88"
Top Right: BHG 175gr .57"

Center: HSM 168gr 1.47"

(the multiple markings on the target you see were done later that night after a "few" beers)



Like many out there I decided to begin handloading. This site had plenty of info to learn from along with the Hornady 9th reloading edition. (The search function works wonders)

The first batch I used the spent Black Hills Match cases. Tumbled them, cleaned the primer pockets, uniformed them and sized them and tumbled again before final loading.

Headspace: 1.631
Case length: 2.010
Powder: 41.5 gr IMR 4895
Primer: CCI #200
Bullet: Hornady 168gr BTHP
OAL: 2.805

I went over to Eastern Washington to use the 100/200/300 yard range.

100 yard range

Bottom: Handload - 1.04"
Bottom Left: Handload - 1.30"
Bottom Right: Handload - 1.35"
Center: Handload - 1.47"

Top Left: HSM 168gr - 1.98" (last rounds of the day)
Top Right: HSM 168gr - 1.57" (last rounds of the day)




200 yard range

Center: Handload - 2.14"




300 yard range

Bottom Center: FGMM 168gr - 2.94"
Center: Handloads - 6+"



All in all I had fun first and foremost. My first loads turned out better than I thought so I am definitly happy with that. My groups keep improving so double bonus.

And here is my Rifle



Not sure what happened with my handloads at the 300 yard range.

I have reloaded the Black Hills again with one change on the headspace to 1.632. All of my spent cases come out reading 1.634. The rifle came from Springfield tagged with a headspace of 1.631. ????

In a few days back to the local 100 yard range. Happy Happy Happy
Fast back what does the headspace on the factory loaded black hills ammo you have measure ?

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Old September 4th, 2013, 04:35 PM   #12
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Very impressive, and that's a very fine looking rifle.

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Old September 4th, 2013, 04:36 PM   #13
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Originally Posted by noob14s View Post
How does a piston fail?
Well the TIn Sadlak piston chipped, thus failed. Accuracy deminished and it is time to buy a new one. Great piston while it is is in good shape, but failed really fast.

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Old September 4th, 2013, 06:34 PM   #14
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Fast back what does the headspace on the factory loaded black hills ammo you have measure ?
Here's what I get from Factory Black Hills 175gr Match. Headspace is 1.628

RCBS Mic is zero'd at 1.630. each mark is .001. this reads just over .002 less than 1.630.


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Old September 4th, 2013, 06:46 PM   #15
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And FGMM 168gr

Headspace reads 1.624 (.006 less than 1.630)


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