Home Forums Hunting & Shooting AR and Tactical Rifles Owner of a 7 twist now

PSA has a sale on uppers going on, plus free shipping.
Couldn't resist, so I bought a 16", stainless, 556 chamber, 1:7 twist, for 189.99 !
So I have 8's and 9's, and experiment with bullet weights to find the best shooting.
Best chamber/twist combo so far for me, is a 223/1:8, followed by 556/1:9. The worst is turning out to be a wylde/1:8.

So, since I've not owned a 7 twist before, of you that do, what bullet weight, with this barrel length, have you found shoot the most accurate ?

I'd guess barrel and chamber quality has more to do with your results than twist rate. You would need lots of barrels from the same manufacturer to test the effects of twist rates effect on accuracy. Even then, I'm not sure you could tell a difference with an AR-15.

The last 1/7 I played with was a Spikes 16 inch M-4 copy. The barrel hated the 62 grain 855 green tip, but was very decent with the 62 grain Fusion.

I would second that each barrel is different, each reloader is different in skills, knowledge, and equipment - each factor can affect the final result.

Rule of Thumb for me, YMMV: I don't go below 55 grains in a 1/7.

Okay.
I'm hoping to streamline 60 gr. V max's in everything I own.
So far, so good.

1-7 noveske likes the 55 grain Vmax.

my 1-7" Noveskes shoot 60 gr NBTs MOA-ish with ACOG and 1.5-5 MK4, but they shoot pretty much everything MOA-ish...

After you get a 1 in 7" it's a slippery slope to 77 gr. bullets.

I have a box of Nosler's !

I bought one at the first of the year and ended up changing out the handguard and it seems to have some potential with handloads. I'm shooting some Hornady 55gr soft points with H335 and getting 1 1/4" groups. I only tried a couple different loads so I think I can get the groups to shrink a little with some more load development. Here is what it looks like now.

wylde is the chamber type... nothing to do with twist. ANd chambers can vary a bit in accuracy.

but its all in the barrel quality and concentric chambering with a good reamer.

7 twist may not be quite it for some folks, as the up close accuracy is not quite as good as a bit slower twist, but they are all we shot for a long time because once you hit 300 yards and out, they always shot better than the slower twists.

68/69 and up will be fine. Down to 50s has always been fine.

Cool.
Like I said before about the 60 gr v max ammo.
Hope this one shoot it well, like the others, so I can streamline ammo to some degree.
I couldn't pass up the upper for that little of money.
Since I have lowers rat holed, I said, what the heck.

I think this one is gonna be just extra stuff laying around.

I know about the chamber names, and the wylde 1:8, hasn't impressed me for what I've run thru it.

full upper for 190?

only issue I've seeen full 7s do is thin skinned fast bullets sometimes come apart on cut rifled barrels at times. Varies from bullet to bullet, typically due to jacket thickness, IE lack of.

If I were after 60 vmax period no way would I be looking for a full 7 on purpose.

No bcg or ch.
Price sold it, with stainless barrel.
I'm going to try 69's and 77's in it.
My other 9's and 8's, are shooting the 60's very well, so I was hoping this one will too. Just to cut down on ammo for this one, ammo for that one, etc.
If one needs a particular load to shoot spectacularly, so be it.

Bought this one to run irons, or maybe just a red dot, as a general purpose truck gun, beater.

I have plenty of 855, for gp purposes!

Don't discount 60 vmax until you shoot em, in the heat of summer, they either will or won't. Only way to know is shoot. Amax jackets are thicker, vmax thinner, thast the only reason I'd worry a bit, but let the results tell you.

My Rainier Arms (14.5") and the wifes Troy Industries (16") are 1:7 and shoot the 60 Vmax as their GP load and both hover around 1" groups at 100yds.

Well,
It'll be here Monday, so after pt, I'll run out in the hills to my spot, and see what I can do with it, with irons.

You know that it don't count now unless it's 10 shot groups under MOA...........the new standard, ya know.

MM

He said "MOAish" which I guess is larger than MOA or else he would have said "MOA all day long" like the rest.

10 shot groups are intimidating, its easy to not like them.

Frankly, I don't think they prove anything........In any given shooting situation in real life, it's really only the first 1-3 shots that might matter, depending on the situation.

They do have some significance for competitive shooters but that's it.

There are 8 shots (of a 9 shot string) in the ragged hole in the target on the right near the top marked as .750"......I jerked one out, lack of concentration probably.

Yes, 10 shots require a good rifle & load & a lot of concentration.

MM

For some, 10 shot groups proove some shooters aren't as good as they like to think. Others see them as a chance to better themselves for their rifle and ammo. Again, they are easy to dislike but they tell you much more about your rifle, ammo, and shooting fundamentals than 3 or 5 shot groups.

This is not me saying that all groups should be 10 shots. I rarely shoot 10 shot groups, often it's a few 5 shot groups. However, if I want to truly know the accuracy potential of my rifle and load 10 shots will tell me more than 5.