Ultralight Ultralight Rifles

[fishdart]

What velocity's are everyone seeing from their 16" .223's?

SHAW portless. Suppressed. Factory ammo.
50gr Vmax fiocchi @ 3k
55gr Hornady SP @ 2925
77tmk AAC @ 2700

 

[SteveAndTheCrigBoys]

Also a shaw portless 16”

AAC 77gr SMK - 2590 FPS
Norma 77gr GTM - 2550 FPS

 

[sebastian.cassell]

Bca 16” with phantom 77tmk 2630fps

 

[BasicUtahrd95]

Shaw Portless 16”
Black Hills 77gr TMK
2660

 

[blackhawk671]

I’m considering building a lightweight rifle in 6 ARC on a Defiant TiX. Any issues with running a titanium action?

 

[The Guide]

I’m considering building a lightweight rifle in 6 ARC on a Defiant TiX. Any issues with running a titanium action?

While I'm sure it would be fine, this thread is mostly about building ultralight gasless side charging AR-15 variants. Titanium actions historically have had issues with with high pressure magnum cartridges if any issue was seen. I'm sure a light recoiling low pressure cartridge like the 6mm ARC would do fine in a lightweight Titanium bolt action build but I don't not see the correct bolt face available for the 6mm ARC on the Ti X action. The 6mm ARC is a 0.441" bolt face (same for the 22 ARC, 6mm ARC, 6.5 Grendel, and 7.62x39) and I don't see that size available on their website.

Jay

 

[ezwy]

I’m considering building a lightweight rifle in 6 ARC on a Defiant TiX. Any issues with running a titanium action?

If they don’t have a 6 arc bolt face, might as well go 6 creed.

 

[MEdude]

Could also do a 6 BR / BRA / Dasher

 

[RockAndSage]

I’m considering building a lightweight rifle in 6 ARC on a Defiant TiX. Any issues with running a titanium action?

If you really want to build a lightweight bolt gun, in 6 ARC...much does that titanium Defiant action weigh, compared to a Howa Mini action in steel?

 

[ACHILLES]

Defiance Ti SA is 16oz wo trigger
Howa mini is 21.4oz wo trigger and rail

 

[Thegman]

What velocity's are everyone seeing from their 16" .223's?

Generally the same velocities as any other 16" 223 barrels.

Over about 4 different 5.56 & 223 Wylde barrels, I've seen factory BH and AAC 77TMKs in the mid 2,600 range. Those are the only factory ammo I've seen over a chrono (other than various 55 & 62 fmj loads).

In about 6 different barrels (mine and others), handloads in 73 - 77 grain bullets are typically doing in the low 2,700s without pushing too hard.

More limited experience. 62 TSX around 3,000 - 3,050 using Western Powder load data. 70 TSX around 2,800 using Western or Barnes data.