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You are giving up a round 25fps per inch in 5.56. It's really well documented.

I shoot 62gr at 2900ish fps, and 55gr at 3100ish from a 16". Prefer it as it has more gas to drive the comp the way I like.

The LM6 muzzle blast is brutal and thats around 11 inches. The LM5 with a 13.1 inch is still loud but far more tolerable. The 14.5 inch AR is a nice...

Minimum factor for minor rifle is 150 and for major 320. 150 factor with a 55gr bullet means you need a minimum velocity of 2728 fps, but nobody...

Thanks for the insight :t:

So, what are the factor requirements for typical competitions the rifle might be used in? I.e. what factor values, velocities, etc?

RIP, he really know how to tell a story

Just the strong hand cut where the trigger guard rides on the knuckle of the middle finger. It allows me to get a much higher grip on the gun. On...

No it won't. Shortest barrel I would be comfortable trying to push to make factor with would be a 13.7 inch. I can be done with a 12.5 but you would...

The reason most mil units have moved away from 10.3 / 10.5 is cause they have excessive bolt speeds and tend to wear the rifles quicker. Seals, and...

Does the undercut give that much advantage and did you do just the main hand middle finger grove or did you undercut for support hand as well? ...

Around R16K retail.

I missed the factor question, and I doubt it unless you're hand loading to dangerous pressures.

To be honest, I don't know. What are the factor requirements/specifications for competitions and how do the velocities from different barrel lengths...

LLumar is great and besides the protection if gives, compare the inside temperature of a vehicle fitted to one without. The sun damage to cloth...

14.5" is a great general purpose rifle, the extra length of barrel adds to velocity. 10.5" is a great cqb rifle, but you loose a lot of velocity...

Will the 10.5 make factor? This might become a problem if you want to become competitive.

Seeing that you mentioned both the 14.5" and 10.5" variants, I'd be curious to see what the 14.5" price would be. The one I have seen recently was...