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Posted: 3/19/2015 10:27:21 AM EDT
[#1]
SGAmmo and 55-77 grain.
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Posted: 3/19/2015 10:57:30 AM EDT
[#2]
One of the best deals going today:
http://palmettostatearmory.com/index.php/ammunition/rifle-ammunition/223-5-56/federal-5-56-55gr-fmj-bt-90rds-strclp.html |
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Posted: 3/19/2015 10:58:29 AM EDT
[#3]
I'll let the experts speak here better than me, but my experience is to test a bunch of different types in each rifle and see what it likes best. In other words, I don't know if I'd stock before knowing what your rifle likes.
Case in point, I have a Noveske build with a 1/7 twist 16" barrel that just LOVES 50g .223 varmint rounds. I didn't see that one coming. |
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Posted: 3/19/2015 11:01:21 AM EDT
[#4]
Quoted:
I have been reading a lot about bullet grain vs twist rate. I don't have the rifle yet but I do want to start buying ammo. Will say a 40 grain or 55 grain bullet be as accurate as a 75 grain bullet coming from a 1-in-7 twist rate chrome line barrel? I had this same question when I was building my PSA. Everyone I talked to said they had no problem running 55gr. I cant say anything about 40gr. When I took my PSA in to sight it i saw zero difference in accuracy with 69gr and 55gr. Hope that helps. |
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Posted: 3/19/2015 11:01:51 AM EDT
[#5]
Quote HistoryQuoted:
One of the best deals going today: http://palmettostatearmory.com/index.php/ammunition/rifle-ammunition/223-5-56/federal-5-56-55gr-fmj-bt-90rds-strclp.html They ship fast also. |
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Posted: 3/19/2015 11:20:22 AM EDT
[#6]
Great information!!! Thanks guys!!
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Posted: 3/19/2015 11:36:11 AM EDT
[#7]
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Posted: 3/19/2015 12:47:20 PM EDT
[#8]
Every barrel will handle ammo differently. Like some of the above replies suggest, buy a bunch of different brands/grains and see what your rifle likes to chew up and spit out. I have a Daniel Defense CHF 1/7 twist chrome lined barrel which shoots cheap Wolf Gold 55gr really well and is lights out with SSA 69gr.
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Posted: 3/19/2015 1:15:04 PM EDT
[#9]
Generally, heavier bullets are more accurate in faster twist barrels like a 1:7. The lighter bullets may be overstabilized and not be very accurate.
For example, 77gr SMK's require 1:7 or 1:8 twist barrels. 1:8 seems to be the best all around twist if you want to shoot the heavy and light stuff. |
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Posted: 3/19/2015 1:23:03 PM EDT
[#10]
I've had 52's and 55's show stellar accuracy in 1/7 barrels. At 100 yards. Maybe even better than some of the heavier stuff out of my 1/7's. Some say the heavier bullets, you see the benefits at longer distances with the size of groups. So yeah, at 100 yards, I think the best load going is 52 grain BTHP, Black Hills. But they will not carry as far and buck the wind as good as the heavier bullets for longer distance shooting.
Plus, as someone said earlier, you have to shoot a bunch and see what your barrel likes. Because if I've said it once, I've said it a thousand times. EVERY BARREL IS PREJUDICED. |
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Posted: 3/19/2015 1:25:38 PM EDT
[#11]
Quote HistoryQuoted:
They ship fast also. Quote HistoryQuoted:
Quoted:
One of the best deals going today: http://palmettostatearmory.com/index.php/ammunition/rifle-ammunition/223-5-56/federal-5-56-55gr-fmj-bt-90rds-strclp.html They ship fast also. Hey be nice to the newguy. PSA takes about a month to ship. Slowest company and worst customer service. Its not worth the cheap prices for the cheap parts. |
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Posted: 3/19/2015 2:17:45 PM EDT
[#12]
Quote HistoryQuoted:
Hey be nice to the newguy. PSA takes about a month to ship. Slowest company and worst customer service. Its not worth the cheap prices for the cheap parts. Quote HistoryQuoted:
Quoted:
Quoted:
One of the best deals going today: http://palmettostatearmory.com/index.php/ammunition/rifle-ammunition/223-5-56/federal-5-56-55gr-fmj-bt-90rds-strclp.html They ship fast also. Hey be nice to the newguy. PSA takes about a month to ship. Slowest company and worst customer service. Its not worth the cheap prices for the cheap parts. I ordered. VZ 2008 last week. They shipped it the next day. I think the slow shipping is AR related gear. |
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Posted: 3/19/2015 2:31:17 PM EDT
[#13]
Quote HistoryQuoted:
I ordered. VZ 2008 last week. They shipped it the next day. I think the slow shipping is AR related gear. Quote HistoryQuoted:
Quoted:
Quoted:
Quoted:
One of the best deals going today: http://palmettostatearmory.com/index.php/ammunition/rifle-ammunition/223-5-56/federal-5-56-55gr-fmj-bt-90rds-strclp.html They ship fast also. Hey be nice to the newguy. PSA takes about a month to ship. Slowest company and worst customer service. Its not worth the cheap prices for the cheap parts. I ordered. VZ 2008 last week. They shipped it the next day. I think the slow shipping is AR related gear. I ordered a Bushnell AR Optic March 9th, they promptly shipped it on March 17th. I think your case is more of the exception than the rule. |
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Posted: 4/30/2015 8:21:48 PM EDT
[#14]
Does anyone know if there are any threads or resources that compare how barrels of the same length (16") with 1:7, 1:8 and 1:9 twist rates perform when shooting 55 gr. vs. 62 gr. (Federal XM193 & Federal XM855) at a fixed distance?
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Posted: 4/30/2015 8:36:01 PM EDT
[#15]
I have had excellent results with 52s-77s. I tend to shoot those two weights the most.
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Posted: 4/30/2015 8:58:51 PM EDT
[#16]
I also have had excellent results from a 16" 1-7 barrel with XM193 ammo. This shoot was 30 rounds with a 2 second interval between shots at 200 yards from a bipod. AR was a 16" Green Mountain 1-7 barrel, Nikon 4-12-40mm scope and a Hiperfire competition trigger.
Vince 
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Posted: 4/30/2015 9:24:51 PM EDT
[#17]
I have had good luck with 62gr+
Out of a "couple" 1:7 twist guns I have had 2-3 that did not like 55gr. Armalite, PSA and a Olympic. The groups were a little bigger than they should have been at 100 and the Armi would keyhole. |
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