What would be the best caliber for ar platform?

[Tenn.Guy]

That would bolt up on a 5.56 lower, accurate, not too heavy, and factory ammo available?

This would be a deer rifle on occasion.

Thinking of buying some parts along the way for an economical build.
Also anyone have experience with polymer lowers? I've found some available for $50.

Thanks

 

[KPH]

As far as I am concerned polymer is as good as any, I know some will not agree. As far as a upper goes I like Double Star, but most are good.

 

[Howa]

I've got a Rock River 6.8 SPC, me thinks it is the perfect caliber for hunting, can do coyotes, deer, or......zombies.
Here's some info on the 6.8
http://demigodllc.com/articles/6.8-mm-s ... s-carbine/

 

[rdl65]

Never had any experience good or bad with polymer lowers. But for 50.00 I don't think you could go wrong.

 

[-DRM-]

I own 5 polymer lowers from 2 different manufacturers, they work just fine for 90% of AR users. What brand are you finding? You may want to upgrade the FCG, but that is true for many pre-built lowers.

If you are serious about finding them for $50 - I'd love to know where, I have several friends who are looking for lowers right now to finish builds.

I have 5.56 and 300BLK caliber AR's at the moment. Your other major options are 5.7 and 6.8 - but it's getting harder to find ammo in just about all of them right now.

I am still playing with my 300BLK and trying to find a good ammo for it... my intention was and still is to make it my primary deer rifle for next season.

 

[Tenn.Guy]

http://www.americantactical.us/4590/detail.html

Out of stock today... Sorry

Doesn't say you could use anything above a 5.56. You think if they would hold up for a 6.8 or 300 blackout?

I'm not worried about jumping into and paying panic prices. If I can get a lower it might take a year + to finish. Not at the top of priorities.

 

[mr.big]

I would like a 6.5 Grendel

 

[-DRM-]

lol, I kinda figured as much - 2 months ago the Omni poly lowers were selling for $39.95, A few weeks back PSA popped some up on their site for $69.95 and they sold out with a quickness. They are selling on GunBroker right now for up to $200... so when you said $50, I was a little shocked ;)

 

[Plateau Hunter]

Yeah the 6.8 or the 6.5 Grendel would be the perfect TN coyote/deer AR cartridge. I went with a 6.5/6.8 specialty round.

 

[bjohnson]

6mm WOA is looking like a good choice.

 

[09FX4]

I'm in the process of building a 6.5 Grendel right now. Once I choose a free float hg and flash hider ill be set. Can't wait to get it built.

 

[EastTNHunter]

I would love to have a 300 AAC Blackout for just this application. Mainly because of the same mags/mag capacity and using the parent 5.56 case. I know that it does not have the long range pizzazz as some of the 6.5s, but it has all of the thump of a 7.62 in a very efficient package.

 

[348Winchester]

43 Spanish or 41 Swiss.