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5/25/2013 1:14:28 PM EDT
I've been impressed at the level of knowledge and skill on AR15.com! I started looking at some of the rigs by JP Enterprises but some of those prices are kind of pricy for my wallet. Because of reading many threads and posts here I decided at my ripe old age it was about time to build my own AR. I mean this is the best way of getting exactly what I want and have some fun doing it.

It's primary goal will be surgical hits out to 350 yards. I haven't decided on a caliber yet so all suggestions are on the table.

I've been looking at matched upper and lower receivers and see that some are forged while others are billet machined.

MEGA Arms

Seekins Precision

Other than these two attributes, is spending the additional cash beneficial for the machined?

Questions:

What will the machined set give me that the forged set won't?

Any thoughts or suggestions?
5/25/2013 2:18:15 PM EDT
[#1]
Billet is nothing more than bling. Performance will be the same with forged or billet. That said, if billet has caught your eye then go ahead and get your fix...

I just got myself a Mega billet lower and I'm still searching for the matching upper, not easy to find right now. My other rifle is a RRA and it does everything it should. I'm building the Mega setup because I wanted something a little more "high end"
5/26/2013 2:41:50 AM EDT
[#2]
Makes a lot of sense, thanks for the reply!
5/26/2013 4:46:07 AM EDT
[#3]
If you're doing it, and you like one, buy the one you like. That's the bonus of building it yourself.
5/26/2013 4:50:26 AM EDT
[#4]
Get a Geissele trigger. Seriously. They are that good.
5/26/2013 4:54:42 AM EDT
[#5]
Quoted:
Get a Geissele trigger. Seriously. They are that good.


+1 i have and SSA-E and its awesome
5/26/2013 7:16:11 AM EDT
[#6]
Thank you for the reply!

This is great to hear because I would essentially be wasting an additional $300 or so on a machined set and other than appearance it brings nothing to the game.

I agree, the barrel and chamber are the key to premium accuracy. Concentricity between the chamber and the bore are paramount to ensure alignment if the bullet to the bore is as perfect as possible.

For years I've tailored loads to specific bolt guns to wring out the best aggregate accuracy and this AR will be no different. I'm still undecided as to what platform of cartridge I'll build for.

Accuracy, performance, reliability, brass availability are essential. What I'd like this to be is a semi-custom rifle that allows me to use standard shells, not a wildcat cartridge. And for the AR I don't want to get into neck turning either.

Two cartridges that come to mind are:

.223 Remington
.308 Winchester

Both calibers offer a host of caliber possibilities will numerous bullet weights and lengths. I'm leaning on the .308 Winchester platform but more toward the 7mm stye bullet so probably the 7mm08 cartridge.

I've been shooting and handloading for over 40 years. I love precision and the idea of building my own AR is something I've been planning on doing for a long time but until recently it's been on the back burner.

I naturally want to the rifle to look good but I'm not into expensive looks with little to no benefit. To tell you the truth, I've looked carefully at the forged vs the CNC machined and other then some neat features I went away scratching my head because the prices were / are nearly double...

I like free floating barrels. Free floating the heavy barrels is how I achieved the best accuracy in my bolt guns and this will apply here.

I'm trying to decide on the 16" or the 18" barrel length. I like the idea of a little longer barrel for accuracy and muzzle velocity. I think I can also get away with using a 14" handguard as well.

A good trigger is a must and I've basically settled on the Geissele SSA or SSA-E.

I'm going with the standard bolt vs a low mass setup because for what I intend to do I won't be able to realize any benefit from it.

As always your comments and suggestions mean a lot!
5/26/2013 10:23:12 AM EDT
[#7]
I would look into the 6.5 Grendel or the 6.8 spc/spc ii.  Both have excellent long range capabilities.  The next build I'm going to do will be my long range gun, a 6.5 Grendel.  Already have a Mega lower and side charging Mega upper for it as well as a 22" barrel on order from Satern.  It will be a couple 4-5 months before that's here tho.  I'm hoping it turns out as good as I'm wanting it to.

Eta. The 6.5 is excellent if you reload (I'm hoping to get into to that myself soon) and the 6.8 is now being stocked at WalMart from what I understand (that is when Walmart has ammo in stock)
5/27/2013 4:42:33 AM EDT
[#8]
Quoted:
I would look into the 6.5 Grendel or the 6.8 spc/spc ii.  Both have excellent long range capabilities.  The next build I'm going to do will be my long range gun, a 6.5 Grendel.  Already have a Mega lower and side charging Mega upper for it as well as a 22" barrel on order from Satern.  It will be a couple 4-5 months before that's here tho.  I'm hoping it turns out as good as I'm wanting it to.

Eta. The 6.5 is excellent if you reload (I'm hoping to get into to that myself soon) and the 6.8 is now being stocked at WalMart from what I understand (that is when Walmart has ammo in stock)


If I'm understanding this correctly both the 6.5 Grendel and the 6.8 SPC utilize the standard AR .223 lower?

5/27/2013 7:08:12 AM EDT
[#9]
Yip.  The only difference in the 6.5 is the bolt and barrel.  I haven't studied the 6.8 quite as much so don't want to steer you wrong on it but it does use a milspec ar15 lower and upper as well
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