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Centerfire Rifles - Manually Operated Lever action, bolt action or other non gas operated centerfire rifles.

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Old 08-12-2019, 2:00 AM
RCxRC RCxRC is offline
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Default Best factory load out of Savage 1:8 twist 6.5 CM?

I wasn't sure if I should put this under the rifles/manual sub-forum, or the ammo forum...? Starting here....

What factory load has proven to be the most accurate for you out of your Savage 1:8 twist 6.5 CM? I am using a model 11 Long Range Hunter (24" bbl w/adjustable muzzle brake, adjustable cheek riser) that I picked up recently in a trade.

I've tried a half-dozen loads and the Hornady 147gr ELD Match has proven most accurate by quite a bit (consistently 1" or a hair less @100 yds). The other Hornady ELD Match loads (140, 120) also have proven quite good.

Norma 130gr HPST Match came in 3rd and Federal 140gr GMM SMK came in 4th for me. All 1-1/2" 5xrd groups or less.

I also tried Fed 135gr Berger Hybrid, Hornady 120gr GMX Outfitter, Hornady 140gr American Gunner, and Hornady 129gr SST Super Performance, but all grouped significantly less well than the first four (above), at 2" or larger groups.

Any recommended non-lead loadings? Hornady GMX, Barnes Tsx?

On a side note, with the pencil-thin barrel, how many rounds can one expect before seeing heat-related group spreading / group inconsistencies? Any opinions shared would be appreciated.

P.S. For comparison, I consider myself a "fair" bolt action rifle shot (having spent most of my long-gun experience with AR's and other mil-surp stuff over the past 35 years). I have a Rem 700 5R Milspec that I have had for about a year (my first decently accurate rifle and scope setup that wasn't meant just for general, close-in target shooting or hunting) and shoot 1" or less 5xrd groups all day long with factory Fed GMM ammo, with a few "bests" of around .610-.700", after about 500 rds total through it. What I'm trying to get at is I am not seeing any significant benefit of the 6.5 yet, certainly not at 100 yds. Further out, we'll have to see. Another issue is the pencil barrel. It heats up fast, and I'm sure it has something to do with the spreads I'm seeing.....maybe I expected too much.... :-/
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Last edited by RCxRC; 08-12-2019 at 7:45 AM..
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Old 08-12-2019, 4:28 AM
shafferds shafferds is offline
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Unfortunately only way to know is try them out. Each gun barrel is different.
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Old 08-12-2019, 8:58 AM
sigstroker sigstroker is offline
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I would expect something called "Long Range Hunter" to have a thin barrel. The implication is you're going to hunt with it, maybe in the mountains. People don't want to hump a heavy barrel.

From what I've read and seen (on video), 6.5 Creedmoors usually shoot short bullets or long bullets well, but not both.
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Old 08-12-2019, 9:35 AM
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Quote:
From what I've read and seen (on video), 6.5 Creedmoors usually shoot short bullets or long bullets well, but not both
That would depend on rifling twist.

My advice to the OP would be to contact each bullet maker and ask them which rate of twist to use with a particular grain-weight (length) projectile.

Also, become better acquainted with the differences between guided metal and pure copper projectiles. They donít play well with each other in regards to bore fouling.

For example, the GMX is a solid non-lead composed of guilded metal alloy whereas a Barnes TSX is a pure copper spitzer. A bore must be thoroughly cleaned of all copper fouling before you shoot the other.

And this is regardless of shooting the appropriate-length bullet for the twist rate...
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Old 08-12-2019, 9:50 AM
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Quote:
Originally Posted by RCxRC View Post
What factory load has proven to be the most accurate for you out of your Savage 1:8 twist 6.5 CM?
Every gun is it's own beast.
There is no "best" load for all of them.

Quote:
Originally Posted by RCxRC View Post
I've tried a half-dozen loads and the Hornady 147gr ELD Match has proven most accurate by quite a bit
Now you know what yours likes the best.

Quote:
Originally Posted by RCxRC View Post
On a side note, with the pencil-thin barrel, how many rounds can one expect before seeing heat-related group spreading / group inconsistencies?
Typically 3 rounds.
After that, let it cool down an hour or more in the shade before you can expect another tight group.

Quote:
Originally Posted by RCxRC View Post
I have a Rem 700 5R Milspec that I have had for about a year (my first decently accurate rifle and scope setup that wasn't meant just for general, close-in target shooting or hunting) and shoot 1" or less 5xrd groups all day long with factory Fed GMM ammo, with a few "bests" of around .610-.700", after about 500 rds total through it.
What I'm trying to get at is I am not seeing any significant benefit of the 6.5 yet, certainly not at 100 yds. Further out, we'll have to see.
The only advantage of a 6.5 vs a 308 in shorter ranges (under 600yds) will be slightly reduced recoil due to lighter bullet weight.
The 6.5 really starts to shine past 800yds where 308 is getting a boat anchor trajectory.
Inside of 400yds, the 308 has more energy on target due to heavier bullets being used.

Quote:
Originally Posted by RCxRC View Post
Another issue is the pencil barrel. It heats up fast, and I'm sure it has something to do with the spreads I'm seeing.....
maybe I expected too much.... :-/
If you are expecting a skinny barrel to function similar to a heavy target barrel, you are certainly expecting too much.
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Last edited by ar15barrels; 08-12-2019 at 9:53 AM..
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Old 08-12-2019, 10:37 AM
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Randall,

Yes, I was admittedly unrealistic in my expectations. Having mostly shot mil-spec rifles (1903A3, M1 Garand, M1 Carbine, M1A Nat'l Match, AR's, Mauser's), I did not expect how much the barrel would heat up and stayed hot. As I said, other than an old 30-30 I had no other hunting rifles until this past year, having in the past borrowed whatever I needed (when hunting with relatives in NV and OR). Getting it out of the sun, even while cooling, is an excellent suggestion. An hour? Duly noted. Did I expect it to compare favorably with the heavier weight barrel on the Rem 700 5R? No, of course not. But, still, I have never had a barrel remotely this thin on a center-fire rifle, so I clearly have a lot to learn and get used to when using it.

Thank you also for the other responses. P.S. Yes, I have read in several places that the GMX and TSX do not play well together, and to clean well if switching between the two. Just have to play with them & try each out to see which works best, it seems.
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Old 08-12-2019, 12:19 PM
sigstroker sigstroker is offline
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They make a gadget with an electric fan that you stick in the chamber that might cool it faster, especially if you rest it vertically while cooling.
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Old 08-12-2019, 12:44 PM
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I’ve had the ttsx shoot very good out of all my bolt actions.
I was going to suggest you check all your screws on action, base and scope rings if you’re getting inconsistencies
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Old 08-12-2019, 1:57 PM
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Quote:
Originally Posted by RCxRC View Post
other than an old 30-30 I had no other hunting rifles until this past year, having in the past borrowed whatever I needed (when hunting with relatives in NV and OR).
I have never had a barrel remotely this thin on a center-fire rifle
Now you have a bolt action hunting rifle.
Use it as such.

It's no target rifle.
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Old 08-12-2019, 2:01 PM
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Quote:
Originally Posted by sigstroker View Post
They make a gadget with an electric fan that you stick in the chamber that might cool it faster, especially if you rest it vertically while cooling.
https://www.anarchyoutdoors.com/magn...hoCInIQAvD_BwE
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Old 08-12-2019, 2:47 PM
RCxRC RCxRC is offline
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(Double posted)
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Old 08-12-2019, 2:53 PM
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Seems like I'll be putting away the target ammo & stop trying to see "what it'll do", and instead focus on figuring out exactly which hunting load works best (cold, clean bore + two, with an hour to cool in between), and call it done.

Just in time for open season!

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