u/Reaper-23-

▲ 3 r/6ARC

What is the deal with 6MAX and People saying its better

Am I missing something that every video of 6ARC showing its capabilities theres always multiple 6MAX people trying to defend it?

It’s my understanding the only benefit 6MAX had was fixed the bolt issue and magazine geometry.

However since the issue with bolt breakages has been fixed entirely and even improved to run higher pressures and magazines are stable and have been for a minute why is there still people defending 6MAX as if its better somehow?

Alot of downsides to 6MAX from my experience
-Slower velocity
-Doesnt handle higher grain bullets well
-Magazine restricted to 350 legend magazines
-No commercial support
-Very little load data

Am I missing something here or are people just trying to defend their crappy purchases hoping more people hop on the bandwagon to gain market support?

reddit.com
u/Reaper-23- — 13 days ago
▲ 56 r/6ARC

Craddock HD bolt using 62k PSI loads in AR15 Update

First off forgive the formatting

My previous post was about the craddock HD bolt and being able to withstand hard use while using FRT and longevity associated with using 62k PSI loads with my two gas gun test platforms

Im here to say so far i’ve been pleasantly surprised

Ive used the bolt in both a 14.7” and 11.5” 6ARC platform and have yet to break it although im only around 1k of bolt gun reloads so far without breakage. Still a ways to go. Some of loads im sure were over 62k psi based off how the brass looked.

Test platform 11.5” Craddock RTR SBR Gas gun Garmin Xero C1

105gr BTHP 29.7gr CFE223 were running at 2464fps

108gr ELDM 30.3gr CFE 223 were running at 2494fps

108gr ELDM 27.6gr VARGET were running at 2393fps

FACTORY 108gr eldm were running at 2343fps for reference

Ill attach pictures of some group testing and chronograph data I did with the 11.5” SBR 6arc I built to test this out. The reason I went with a 11.5” was the gas system is shorter leading to harder wear on parts and increased port pressure associated with shorter gas systems. I also wanted to see what shorter barrel velocities would be with 6ARC other than the 12.5” data thats out there which is mostly 52k PSI loads or factory ammo

*Group tests were conducted with only 5 rounds as this was more a ladder test specifically for this 11.5” rifle. These were just the best groupings I shot but not the norm for the rifle. Most groups were just above a inch but less than 1.4” but will still need to be repeated. Most of the round count with the bolt was done with a 14.7” barrel previously. The 11.5” only has around 200 rounds on it as of today and was used in the test today.

u/Reaper-23- — 2 months ago
▲ 49 r/6ARC

Craddock HD bolt info

Just did a very quick measurement to confirm the craddock HD bolt does in fact have thicker walls on the bolt. Im sure theres better way to measure it and i’m sure others will do more precise measurements but I just wanted to know if it was in fact thicker.

Noveske - 0.5275”
Fail Zero - 0.5290”
Craddock HD - 0.5645”

Also a interesting letter attached within packaging about how they tested it.

Planning on testing the bolt out using FRT and mild Bolt gun loads.

u/Reaper-23- — 3 months ago