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Posted: 10/23/2004 6:20:53 AM EST
Give me an idea what you're using, group size and do you think a 1/8 18" will stablize a 77gr bullet?
Link Posted: 10/23/2004 6:43:01 AM EST
[Last Edit: 10/23/2004 6:44:53 AM EST by mongo001]


I also shoot 77gr SMKs, but not with those results. My groups are under 1" at 100yds, but just barely. The load still needs some work, I guess. I have the WOA 1/7 SPR profile barrel. 1/8 should do fine with the 77gr bullets.
Link Posted: 10/23/2004 8:23:43 AM EST
Have you shot past 100yds?
Link Posted: 10/23/2004 8:40:05 AM EST
Link Posted: 10/23/2004 8:46:54 AM EST
[Last Edit: 10/24/2004 5:28:51 PM EST by mongo001]

Originally Posted By mikepenn33:
Have you shot past 100yds?



1.9" at 200 yds with 77gr SMKs is my best. Shot a 20 round 8-9" group (with a few fliers, but the core of the group was 8-9") at 600 yds with 77gr SMKs.
Link Posted: 10/23/2004 8:53:44 AM EST
FYI-i read this on a thread a few months back....dont judge the 77gr groups at 100yds...supposedly it takes at least 200 yds for that bullet to stabalize......+1 for the fed 77gr....ive had really good groups out of it at 200 plus.
Link Posted: 10/23/2004 9:14:36 AM EST
The "blue box" Black Hills 69gr and 77 gr are about the same price too.
Link Posted: 10/23/2004 9:26:33 AM EST
Found an old pic of how poorly my SPR did with 68gr BH Match loads on the same day I shot the 0.45" group above.

Link Posted: 10/23/2004 10:05:38 AM EST
Link Posted: 10/23/2004 10:12:25 AM EST
I shoot the 77gn SMK over a healthy dose of Varget or VV540. I have an 18" SPR upper and a 20" DCM upper. Both barrels are stainless 1/8 twist. With my handloads I'm getting MOA groups at 100, 200, 300, 500, and 600 yards. This is with a scope and a rest for both rifles, that way I know if there's a flyer, it's me and not the rifle or the load.

I put a Jewell trigger in both rifles, and it made a whole huge difference. 1/8 is plenty good for the 77SMK or the 77 Nosler. If you're going to roll your own, the two powders, plus RL15 are the DCM choice for the 77s. The Black Hills load gets the nod, blue or red, for over the counter ammo.

Tom
Link Posted: 10/23/2004 10:56:04 AM EST
I'm using 77grn Nosler's on top of 24.5grns of Varget, CCI Primers and LC brass. At 100yds I'm averaging 3/8" groups but havent tested it for groups beyond that. This is through my SPR Mk12 Mod0. Through my Mk12 Mod1, I average about 1/2" at 100yds.
Most liturature I have seen says 24.5 of Varget is over the max load, but I see alot of match shooters using it, so work up SLOW.
Link Posted: 10/23/2004 1:19:14 PM EST
[Last Edit: 10/23/2004 1:21:21 PM EST by jjmcrowell]
I have had good performance with 75gr Hornady TAP, not that great with 77gr BH Match. For some reason mine likes the Hornady TAP.

About 3/4" with the Hornady TAP and about 1 1/4" with the BH 77gr.

This is out of a Douglas 18" SPR profile barrel from CLE
Link Posted: 10/23/2004 1:49:10 PM EST
What does SPR stand for?
Link Posted: 10/23/2004 1:51:27 PM EST
Special Purpose Rifle
Link Posted: 10/23/2004 2:50:16 PM EST
Link Posted: 10/23/2004 4:08:08 PM EST

Originally Posted By bigbore:
AA53


subsonic?
Link Posted: 10/23/2004 5:09:53 PM EST
Link Posted: 10/24/2004 2:41:25 PM EST

Originally Posted By new-arguy:

Originally Posted By Sixgun357:
What does SPR stand for?



Special "Priced" Rifle... hahaha!


Your not kidding.
Link Posted: 10/24/2004 5:28:19 PM EST

Originally Posted By bigbore:
AA53



You out of the SPR building business? You ditched the SPR category on your website. What's new and hot now, other than KG Cote??
Link Posted: 10/24/2004 5:38:38 PM EST
Link Posted: 10/25/2004 3:36:01 AM EST
BlackHills Bluebox 77 grain.


Link Posted: 10/25/2004 7:02:29 AM EST
Link Posted: 10/25/2004 9:24:19 AM EST
[Last Edit: 10/25/2004 9:27:23 AM EST by M700Police]
77gr BH Blue box here too. Also had good luck with the Georgia Arms 68gr match load (much less expensive). The 77gr shoot under .5 MOA and the 68gr are just over .5 most of the time out of my Adco built SPR. If I do my part that is.

Link Posted: 10/25/2004 10:40:51 AM EST
Link Posted: 10/25/2004 11:27:59 AM EST
[Last Edit: 10/25/2004 11:29:39 AM EST by warriorsociologist]
75gr Black Hills blue box...though I want to try some 77gr. After I work through the 1000rds of 75 gr. I just picked up, I'll try something else.
Link Posted: 10/25/2004 5:47:32 PM EST
[Last Edit: 10/25/2004 5:51:17 PM EST by 223Rem]

Originally Posted By jjmcrowell:
I have had good performance with 75gr Hornady TAP, not that great with 77gr BH Match. For some reason mine likes the Hornady TAP.

About 3/4" with the Hornady TAP and about 1 1/4" with the BH 77gr.

This is out of a Douglas 18" SPR profile barrel from CLE



I am rather surprised with you are not getting better performance from the BH in a CLE barrel.
Link Posted: 10/26/2004 1:13:25 AM EST

Originally Posted By 223Rem:

Originally Posted By jjmcrowell:
I have had good performance with 75gr Hornady TAP, not that great with 77gr BH Match. For some reason mine likes the Hornady TAP.

About 3/4" with the Hornady TAP and about 1 1/4" with the BH 77gr.

This is out of a Douglas 18" SPR profile barrel from CLE



I am rather surprised with you are not getting better performance from the BH in a CLE barrel.




Maybe, I'll try them again. Maybe the barrel wasn't completely broken in. Or maybe an off day
Link Posted: 10/26/2004 1:58:08 AM EST
Link Posted: 10/28/2004 5:26:19 AM EST
That's why I ordered a little bit of everything.
Link Posted: 10/29/2004 9:20:42 PM EST
Black Hills blue box, 69 gr. smk's,75 gr. BTHP, 77 gr. SMK, and Hornady TAP 75 gr. My SPR absolutly loves the BH BB 75's and the TAP, so so with the others.... However my other 1/7 twist rifles,both LMT 16" M4's shoot all of them very well.

Groups on the spr off a bipod at 100 yards are about .75" when I do my part.. I shot a 10 round group today that annilated the X ring of a 8" Shoot and see target at 100 yards.. Can't wait to see what she can do at 600 yards...


-sc
Link Posted: 10/30/2004 5:15:47 AM EST
Good thread guys....I will be doing some testing myself in a the next cou8ple months. WHere is everybody getting their black hills from?? I used to use Georgia Precision but Ive seen some problems with em lately.
Link Posted: 10/30/2004 9:19:45 AM EST
Link Posted: 10/30/2004 2:45:41 PM EST
Can someone help me ? I am shooting a 1/7 colt 14.5 inch barrel, what type of ammo is best accuracy wise? regular 55gr ammo, or ss109 type, please help me out here, some friend sold it to me and the barrel was not very accurate at 50 yards, he said that it was because I was using wincester 55 gr. ammo, that i should use SS109 PLEASE HELP!!!!!!!!!!!!!!
Link Posted: 10/30/2004 7:06:42 PM EST
Not exactly the right thread, but a 1/7 twist barrel is designed for heavier bullets. 55grn ammo was originally issued with rifles that had 1/12 twist rates. 62grn SS109/M855 will shoot better for you. Or the 69-77grn primo stuff these guys have been discussing.
Link Posted: 10/31/2004 12:27:44 AM EST

Originally Posted By rifleduck:
Can someone help me ? I am shooting a 1/7 colt 14.5 inch barrel, what type of ammo is best accuracy wise? regular 55gr ammo, or ss109 type, please help me out here, some friend sold it to me and the barrel was not very accurate at 50 yards, he said that it was because I was using wincester 55 gr. ammo, that i should use SS109 PLEASE HELP!!!!!!!!!!!!!!

what's your definition of not accurate? How far were each shot? Operator error?


Anyways, back to SPR. They shoot 5.56/.223 correct? Will the rounds still penetrate flesh out to 400 yards? Head? Or just paper?
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