M24 Range with Sierra, Hornady & Barnes 175-178 Gr .308 - M14 Forum

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M24 Range with Sierra, Hornady & Barnes 175-178 Gr .308

This is a discussion on M24 Range with Sierra, Hornady & Barnes 175-178 Gr .308 within the Bolt Action forums, part of the Gun Forum category; I was looking at my stock of bullets and decided to try three "Match grade" bullets. I've been working with Hornady 178 Gr ELD-x tipped ...


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Old April 2nd, 2017, 12:47 PM   #1
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M24 Range with Sierra, Hornady & Barnes 175-178 Gr .308

I was looking at my stock of bullets and decided to try three "Match grade" bullets.

I've been working with Hornady 178 Gr ELD-x tipped bullets. My basic load is 42.8 Gr of RL15 on new Nosler cases (1.97 +- .004) and CCI BR-2 primers. Loads are uncrimped. Indoor range at 100 yards. Similar loads with a slight crimp yield velocities on the order of 2740 FPS.

The first tests were the Hornady ELD-x 178 Gr tipped. First shot was 1/2" low. The rest were low and left. overall group was .625 MOA

Second group was Sierra MK 175 Gr BTHP. The first three shots just about went through the dame hole. Without the No 4 flyer the group was 0.149 MOA With the flyer the group is .725 MOA

Third group was a bullet that I have not had a lot of luck with in my M1A, the Barnes 175 Gr BTHP Match Burner. The group was a pleasant surprise with a .540 MOA

- Bryan
Attached Images
File Type: jpg Hornady_ELD-x_178Gr_BTHP_RL15_SM.JPG (165.8 KB, 2 views)
File Type: jpg Sierra-175-MKBTHP-42_8-RL15-4-2-17WOFL_SM.JPG (138.8 KB, 2 views)
File Type: jpg Barnes_175Gr_MB_BTHP_RL15_SM.JPG (207.1 KB, 2 views)

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Old April 2nd, 2017, 02:36 PM   #2
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Looks like she really likes the sierras, always that one flyer that ruins a one hole group. Good shooting, how many rounds does she have through her now?

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Old April 3rd, 2017, 07:11 AM   #3
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Less than 200. This is the first time I’ve got a rifle that is far better than I am.

I loaded the next batch of Sierra 175 MK to tighter in loading constraints. I weighed each bullet and only loaded bullets of the same weight in each of the 5 shot strings. It seems that Sierra has a tolerance of 175 +- .2 Gr. The surprise was they were loaded to “stock length” of 2.8.

I have three strings to test, one plain, and two treated with Tubbs Boron Nitrite coating. I’ll chrono each strin and see what I get.

The Barnes Match Burners were also a pleasant surprise; I have about 1000 of these that I bought during the worst of the Obama induced reloading supply shortages. They never flew well out of my M1A, so I’m glad I have a platform where I think I can get some millage out of them.

We’ll see how the next batch fly’s Saturday.

- Bryan

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Old April 3rd, 2017, 07:11 AM   #4
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Join Date: Aug 2010
Location: Falls chruch VA
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Less than 200. This is the first time I’ve got a rifle that is far better than I am.

I loaded the next batch of Sierra 175 MK to tighter in loading constraints. I weighed each bullet and only loaded bullets of the same weight in each of the 5 shot strings. It seems that Sierra has a tolerance of 175 +- .2 Gr. The surprise was they were loaded to “stock length” of 2.8.

I have three strings to test, one plain, and two treated with Tubbs Boron Nitrite coating. I’ll chrono each string and see what I get.

The Barnes Match Burners were also a pleasant surprise; I have about 1000 of these that I bought during the worst of the Obama induced reloading supply shortages. They never flew well out of my M1A, so I’m glad I have a platform where I think I can get some millage out of them.

We’ll see how the next batch fly’s Saturday.

- Bryan

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Old April 3rd, 2017, 08:04 AM   #5
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My M1A loves SMK's also. It really likes the 155's . In the 600 yard arena you really have to read the wind with the 155's. 168's work great also.. By the way good looking groups..

Where in the world do you shoot anywhere near Falls Church????

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Old April 4th, 2017, 07:27 PM   #6
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HEY! why is there no picture of the m24 ?
that is some great shooting right there.

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Old April 6th, 2017, 09:26 AM   #7
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Quote:
Originally Posted by AMS 41 View Post
My M1A loves SMK's also. It really likes the 155's . In the 600 yard arena you really have to read the wind with the 155's.
I never really had any luck with the 155's in any of my rifles, then I stumbled on a good deal for some 155 Berger Hybrids that was worth a revisit. My M1 in 7.62 loves them, and they will shoot inside the 168SMK..

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