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#6322302 - 06/04/16 07:59 AM 5.56 Ammo for SBR
onlysmith&wesson Offline
Bird Dog

Registered: 07/10/14
Posts: 356
Loc: Lewisville/ Foard County
Haven't shot anything but 55gr. through my SBR. Not bad, but would like to know if I'd be improving accuracy if I went up in bullet weight. Barrel is 9", six grooves 1/10 twist. Anybody shooting through this barrel?

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#6324088 - 06/05/16 06:08 PM Re: 5.56 Ammo for SBR [Re: onlysmith&wesson]
jdk1985 Online   content
THF Celebrity

Registered: 08/15/11
Posts: 11991
Loc: Waco, TX
1/10 twist is pretty slow. Generally speaking, you will not be able to increase bullet size very much and retain stability. You could maybe get to 60 or 65.

It usually takes 1:7 - 1:9 to stabilize the 75+grain bullets.

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#6324271 - 06/05/16 08:53 PM Re: 5.56 Ammo for SBR [Re: onlysmith&wesson]
onlysmith&wesson Offline
Bird Dog

Registered: 07/10/14
Posts: 356
Loc: Lewisville/ Foard County
Thanks for the info. Gun shoots way better than I expected, just wanted to know heaviest bullet I could shoot. I can stay with the 55gr V-max.

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#6683585 - 02/22/17 10:41 AM Re: 5.56 Ammo for SBR [Re: jdk1985]
onlysmith&wesson Offline
Bird Dog

Registered: 07/10/14
Posts: 356
Loc: Lewisville/ Foard County
Shot some 65 gr. Groups opened up to about 4". Was with a buddy that had a bunch of ammo to burn up. I thought so, but now know so. 55 gr it is.
Originally Posted By: jdk1985
1/10 twist is pretty slow. Generally speaking, you will not be able to increase bullet size very much and retain stability. You could maybe get to 60 or 65.

It usually takes 1:7 - 1:9 to stabilize the 75+grain bullets.

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#6683650 - 02/22/17 11:23 AM Re: 5.56 Ammo for SBR [Re: onlysmith&wesson]
ChadTRG42 Offline
THF Celebrity

Registered: 09/16/09
Posts: 10791
Loc: Lewisville, TX
1:10" twist is a slow twist for an SBR rifle. With the reduced velocity of the SBR and slower twist (i.e. less bullet stability), I would keep bullet weights on the light side, 60-65 grains or less, for sure.
_________________________

www.DallasReloads.com
Type 01 and Type 06 FFL

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#6683700 - 02/22/17 11:51 AM Re: 5.56 Ammo for SBR [Re: onlysmith&wesson]
onlysmith&wesson Offline
Bird Dog

Registered: 07/10/14
Posts: 356
Loc: Lewisville/ Foard County
Shoots 55 gr. great, just wanted something heavier. I may actually try and put a hog down with this someday.

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#6683825 - 02/22/17 01:11 PM Re: 5.56 Ammo for SBR [Re: onlysmith&wesson]
2hellandback Offline
Woodsman

Registered: 02/05/17
Posts: 247
lol better go down not up in grains.... 50s and 40s
OH and forget hogs over 50 lbs,,, shoot the babies


Edited by 2hellandback (02/22/17 01:16 PM)

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#6683833 - 02/22/17 01:18 PM Re: 5.56 Ammo for SBR [Re: onlysmith&wesson]
onlysmith&wesson Offline
Bird Dog

Registered: 07/10/14
Posts: 356
Loc: Lewisville/ Foard County
That's what I was thinking, but I'm good at 55 gr. Barrel is actually 8.75".
Originally Posted By: onlysmith&wesson
Shoots 55 gr. great, just wanted something heavier. I may actually try and put a hog down with this someday.

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#6683866 - 02/22/17 01:47 PM Re: 5.56 Ammo for SBR [Re: onlysmith&wesson]
2hellandback Offline
Woodsman

Registered: 02/05/17
Posts: 247
Originally Posted By: onlysmith&wesson
That's what I was thinking, but I'm good at 55 gr. Barrel is actually 8.75".
Originally Posted By: onlysmith&wesson
Shoots 55 gr. great, just wanted something heavier. I may actually try and put a hog down with this someday.


Is that a 10 round mag ?

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#6683893 - 02/22/17 02:06 PM Re: 5.56 Ammo for SBR [Re: onlysmith&wesson]
QuitShootinYoungBucks Offline
THF Trophy Hunter

Registered: 11/01/12
Posts: 7566
Loc: Lubbock, TX
Looks like a fun rig! No suppressor?
_________________________

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#6683903 - 02/22/17 02:18 PM Re: 5.56 Ammo for SBR [Re: QuitShootinYoungBucks]
onlysmith&wesson Offline
Bird Dog

Registered: 07/10/14
Posts: 356
Loc: Lewisville/ Foard County
No. It must be loud, I get comments every time I take it to the range. There is very little to no recoil and feels kinda like a ruger 10-22 when it cycles.
Originally Posted By: QuitShootinYoungBucks
Looks like a fun rig! No suppressor?

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#6684543 - 02/23/17 01:24 AM Re: 5.56 Ammo for SBR [Re: onlysmith&wesson]
Toxarch Offline
Pro Tracker

Registered: 03/09/11
Posts: 1779
Loc: Parker County
The people at the range are right. 5.56 SBR is very loud. I hate being around them.
_________________________
It is far more important to be able to hit the target than it is to haggle over who makes a weapon or who pulls a trigger.

— Dwight D. Eisenhower

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#6684546 - 02/23/17 02:11 AM Re: 5.56 Ammo for SBR [Re: Toxarch]
2hellandback Offline
Woodsman

Registered: 02/05/17
Posts: 247
Originally Posted By: Toxarch
The people at the range are right. 5.56 SBR is very loud. I hate being around them.


Yes very loud you might not be able to hit your attacker but the sound will make them run !!!!!

And i have noticed the ROs take a couple steps back when i shoot mine at carbine competition


Edited by 2hellandback (02/23/17 02:11 AM)

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#6685909 - 02/24/17 09:50 AM Re: 5.56 Ammo for SBR [Re: 2hellandback]
onlysmith&wesson Offline
Bird Dog

Registered: 07/10/14
Posts: 356
Loc: Lewisville/ Foard County
Yes. It came with a 20 which gets in the way at the range, and bumps into everything the rest of the time. Wasn't too hard to find, one of the few US distributors is close to me.
Originally Posted By: 2hellandback
Originally Posted By: onlysmith&wesson
That's what I was thinking, but I'm good at 55 gr. Barrel is actually 8.75".
Originally Posted By: onlysmith&wesson
Shoots 55 gr. great, just wanted something heavier. I may actually try and put a hog down with this someday.


Is that a 10 round mag ?

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#6686242 - 02/24/17 03:59 PM Re: 5.56 Ammo for SBR [Re: onlysmith&wesson]
2hellandback Offline
Woodsman

Registered: 02/05/17
Posts: 247
Originally Posted By: onlysmith&wesson
Yes. It came with a 20 which gets in the way at the range, and bumps into everything the rest of the time. Wasn't too hard to find, one of the few US distributors is close to me.
Originally Posted By: 2hellandback
Originally Posted By: onlysmith&wesson
That's what I was thinking, but I'm good at 55 gr. Barrel is actually 8.75".
Originally Posted By: onlysmith&wesson
Shoots 55 gr. great, just wanted something heavier. I may actually try and put a hog down with this someday.


Is that a 10 round mag ?


LANCER WARFIGHTER best mags ever made to date !!!

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