Stretch 16" (melonite) barrel - muzzle velocity

[flyfishdave]

Put together a limited class 'lightweight' 16" build using the Stretch 16" (.223 Wylde) melonited barrel.

With Freedom Munitions (new) 55gr .223, the Ohler 35P calculated the following:

AVG = 2825 fps

STD = 21

(25 shots)

Same ammo in a 18" JP .223 Wylde: (tested a few months ago)

AVG = 2874 fps

STD = 17

(29 shots)

Surprisingly, only a difference of about 50 fps b/t the 16" and 18" barrel. Both uppers have a JP LMOS bolt carrier group, SLR adjustable GB, SJC Titan brake and were shot using the same lower which has a JP silent captured spring setup, I think with the 90% spring.

The Stretch 16" with a tuned GB and LMOS guts shoots appreciably softer than an off the shelf 16" carbine setup.

[blairmckenzie1]

i had always heard 20 fps per inch was the rule of thumb. you're pretty close to that

[adamge]

I had heard 50fps per inch.

[Nick S]

Question for you regarding the FM 55s.

How well does the Stretch 16 group with that ammo? My Noveske 1x7 SS 16" doesn't shoot FM 55s worth a crap. like 2-3" @ 100 yds. BHs Reman 69s around an inch. Federal GMM 69s around .7" at 100. So I don't think its me...rather that specific ammo.

Thanks

Nick

[TonytheTiger]

Question for you regarding the FM 55s.

How well does the Stretch 16 group with that ammo? My Noveske 1x7 SS 16" doesn't shoot FM 55s worth a crap. like 2-3" @ 100 yds. BHs Reman 69s around an inch. Federal GMM 69s around .7" at 100. So I don't think its me...rather that specific ammo.

Thanks

Nick

I have several 5 shot groups at 50yds like this with my Stretch and FM 55gr reman ammo.

[bmiller]

Question for you regarding the FM 55s.

How well does the Stretch 16 group with that ammo? My Noveske 1x7 SS 16" doesn't shoot FM 55s worth a crap. like 2-3" @ 100 yds. BHs Reman 69s around an inch. Federal GMM 69s around .7" at 100. So I don't think its me...rather that specific ammo.

Thanks

Nick

I have several 5 shot groups at 50yds like this with my Stretch and FM 55gr reman ammo.

When you going to "stretch" it out further than 50 yards?

[TonytheTiger]

I've got it out to 400 just recently, but only on steel so I don't have any precise group measurements. I also rarely shoot from prone but off the lowest ledge of my 3GN barricade in a reverse kneeling/ sitting position it was very easy to keep everything around the six inch range at 400. I'm sure the barrel is capable of far better though.

[MarkCO]

Question for you regarding the FM 55s.

How well does the Stretch 16 group with that ammo? My Noveske 1x7 SS 16" doesn't shoot FM 55s worth a crap. like 2-3" @ 100 yds. BHs Reman 69s around an inch. Federal GMM 69s around .7" at 100. So I don't think its me...rather that specific ammo.

Thanks

Nick

That is about what you are going to get with a Noveske barrel. With the Nordic, JP and Stretch barrels, you will about cut your groups in half with the same ammo.

[Nick S]

I'm hoping that's the case. I'd love to get around 1" with FM 55s.

Thanks for the input everyone.

Nick

[kellymc]

I Shot these groups with my new stretch the other day at 100 yds. I had a very hard time being precise with the 4X TAC 30.

55gr 25.0 h335

Edited November 5, 2015 by kellymc

[gunther]

Question for you regarding the FM 55s.

How well does the Stretch 16 group with that ammo? My Noveske 1x7 SS 16" doesn't shoot FM 55s worth a crap. like 2-3" @ 100 yds. BHs Reman 69s around an inch. Federal GMM 69s around .7" at 100. So I don't think its me...rather that specific ammo.

Thanks

Nick

That is about what you are going to get with a Noveske barrel. With the Nordic, JP and Stretch barrels, you will about cut your groups in half with the same ammo.

That explains a lot (I have the same barrel) have you ever checked the ES? I can never get below 125fps (10rds) on this barrel.

Sent from my iPhone using Tapatalk

Edited November 7, 2015 by gunther