Anyone reloading for their black rifles?
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Old 11-13-2011, 04:44 PM   #1
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Default Anyone reloading for their black rifles?

I have a RRA 24" varmit rifle with a 1/8 twist. I loaded up a batch of Serria 77 gr Match Kings with IMR 4320 and got so-so results (1 1/4" groups @100)Is there a better powder for accuracy? What about Varget? I was told this rifle will shoot 1/2" groups with a decent load.


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Old 11-13-2011, 07:37 PM   #2
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I have a RR 20" SS upper.
I don't remember the last time I bought factory ammunition. I role all of mine.

These are my loads for the RR. Note, where I live, my ranges are short. My own target range is only 100 yards into the timber and I have to use the brush hog to keep the trail passable to a downed tree that I use for stapling my paper targets. With this in mind, I don't spend much time on heavy weights for longer ranges.

50 gr DogTown HP (inexpensive from Midway USA) - 25.5 gr 748 - 3017fps
55 gr DogTown HP (inexpensive from Midway USA) - 26.6 gr 748 - 3013fps
75 gr AMAX (not as cheap) - 23.5 H4895 - 2677fps

These are not loaded for velocity. They are loaded for accuracy.

I also load for an AR180, mid 1970's Sterling vintage with an 18 inch 1:12 twist barrel that doesn't like anything heaver than 55gr.
55 gr FMJ - 26.3 gr 748 - 2874fps

So, yes, I reload for my black guns.

Warning, these loads are safe with my components, as I combine them, in my weapons. This does NOT mean that they are safe with your components in your weapon. Always differ to published loading data from a source that is trusted.

Error on the side of safety.

Enjoy and be safe.

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Old 11-14-2011, 03:18 PM   #3
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The heavies like to spin fast. Rate of twist is one component, Velocity is the other. Twist rate does not stabilize, RPM's stabilize. 77 gr is at the upper end for a 1/8 bbl. You may need to up the velocity to get enough RPM's.
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Old 11-14-2011, 09:37 PM   #4
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my RRA national match 20" likes sierra 69grn bthp over 24 grains of varget or aa2230. both give very good accuray out of my rifle. 100 yards is about .5 to 1 moa open sights
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Old 11-14-2011, 09:59 PM   #5
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Do you guys have a 1-8 twist also?
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Old 11-15-2011, 01:49 AM   #6
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I shoot a lot of 68/69gr match bullets out of my RRA 20" Varminter with 1-8 twist.It shoots them great,but I usually blow the groups with 1 bad shot!
These groups should've been in the .25 range,but I threw one shot off.





I also shoot 75gr Hornady AMax/75gr Hornady BTHP Match bullets quite often with it,but they are shot in a single shot mode since they are far longer than magazine length.As you can see,I threw a couple shots off here also.



I've never tried the 77gr matchkings,but I have shot the 80gr.I wasn't impressed with the results.The 75gr AMax/BTHP Match bullets shoot better for me.
Now if I can fix my shooting problem. LOL
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Old 11-15-2011, 01:55 AM   #7
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Quote:
Originally Posted by greenriver View Post
Do you guys have a 1-8 twist also?
ya my barrel is a wilson air gauged cryo with 1/8 twist

Quote:
Originally Posted by Txhillbilly View Post
I shoot a lot of 68/69gr match bullets out of my RRA 20" Varminter with 1-8 twist.It shoots them great,but I usually blow the groups with 1 bad shot!
These groups should've been in the .25 range,but I threw one shot off.





I also shoot 75gr Hornady AMax/75gr Hornady BTHP Match bullets quite often with it,but they are shot in a single shot mode since they are far longer than magazine length.As you can see,I threw a couple shots off here also.



I've never tried the 77gr matchkings,but I have shot the 80gr.I wasn't impressed with the results.The 75gr AMax/BTHP Match bullets shoot better for me.
Now if I can fix my shooting problem. LOL
ok im gonna try your loading in december when mcmiller opens after deer hunt season.
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Old 11-15-2011, 02:08 AM   #8
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Go right ahead Jon.Hopefully,you'll get results as good or better. THB

I believe I used Winchester SR primers on those loads,or CCI's.
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Old 11-15-2011, 03:48 AM   #9
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My AR has never had a factory round in it.

Best results for me...Hornady Match 75 Grain BTHP over 23.0 Grains of BL-C(2). I have a 1 in 7 twist rate. At 100 yards the holes from my three round groups touch each other.
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Old 11-17-2011, 08:36 PM   #10
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Quote:
Originally Posted by Rick1967 View Post
My AR has never had a factory round in it.

Best results for me...Hornady Match 75 Grain BTHP over 23.0 Grains of BL-C(2). I have a 1 in 7 twist rate. At 100 yards the holes from my three round groups touch each other.
mine either


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