6.5 Creedmoor

[Zak Smith]

GunTech,

I shoot the 139 Scenar in 260REM, but have also used the 140gr Berger VLDs. Other guys locally shoot the 142 SMK with similar results.

 

[Zak Smith]

............... Larger version of above photo.

308, 260REM, 6.4CM, 6.5x47 Lapua.

Although with the photo's perspective, it looks like 6.5CM and 6.5x47 are the same length to the shoulder, the 6.5x47 is actually about a tenth of an inch shorter.

 

[pdd614]

zak,
i plan on buying a trg22 within the next 6 months, and then having a 6.5 barrel put on. with a coal of 3 inches for the trg mags. which caliber would you choose?

 

[Zak Smith]

Hi,

I'll be facing this question when my 260REM barrel is shot out sometime next year, too. I won't have 6.5CM results for a few weeks, but at this point it looks promising.

With 6.5CM out of the equation, I'd give the nod to the 260REM in the TRG-22 for reasons similar to why I prefer 260REM over the 6.5x47 in my AI-AW.

-z

 

[Grendelizer]

Zak, I remember when the 6.5x47 came out, you were going to test it. Sounds like you decided to stick with 260REM. Reasoning?

Also, judging from the photo, the extractor groove of the 6.5CM seems needlessly large, and, to my mind, would impinge on interior volume. Any guesses why they felt the need to change the extractor area dimensions from the tried and true .308/.260 case?

John

 

[Zak Smith]

Zak, I remember when the 6.5x47 came out, you were going to test it. Sounds like you decided to stick with 260REM. Reasoning?

I did- I've been shooting the 6.5x47 in an AI-AW for about 6 months. In the AI-AW, I'll stick to the 260. In an action where I can control the firing pin hole and FP protrusion, I'd probably go with the 6.5x47 given those two choices only. To match or beat 260 ballistics, the 6.5x47 has to be run at higher pressure because it hads smaller volume but a much better case. I don't want to modify an AI bolt face and firing pin.

Ignore the extractor groove differences. Production brass is supposed to be identical to 308.

-z

 

[brasskeeper]

I read somewhere that the 6.5cm is on a 30TC case

 

[atek3]

given the higher pressure for equal velocity, why would you favor 6.5x47L, just the better brass?

atek3

 

[Zak Smith]

260 vs. 6.5x47, the Lapua has the better brass. I haven't tried the almost $1/per Nosler 260 brass yet though.

 

[Will Fennell]

Nosler Brass looks good...

I've gotten in 150 pcs of the Nosler 260 Rem Brass......but haven't loaded with it yet. It does looks great though...."prettiest brass" I've seen....including Lapua. I paid about $40 per 50pc box. After messing with Rem. Brass, it was worth it

 

[Grendelizer]

Anyone know who makes this Nosler brass? Is it one of the "quality" makers? Or is it a "standard" maker who is just "trying harder"?

John

 

[skinewmexico]

My 6.5X47 brass wasn't exactly cheap. I almost hate to send one off to be modified to work with my Stoney Point gauge..........

 

[Will Fennell]

Coal?

Zak,
In the 260 Rem., are you seating those loooong bullets to fit and feed in you magazine, or are you seating long and single loading? I'm thinking you are feeding thru the mag, if so, how long will that AI let you go with your COAL?

This SAKO Varmit I have will let me go out quite a bit further than nominal 2.8".

 

[Zak Smith]

I load my 260 rounds to approx 2.820" - which is probably within 0.020" of the lands (haven't measured lately). The AI-AW magazines will take rounds out to 3.00". The AICS (Rem700/AICS) will accept to 2.850".

If I seated to close to 3.000", I could probably get some more velocity using H4831SC instead of H4350, but I'd have to get the throat cut out further.

 

[stubbicatt]

I read in one of the newstand magazines that the case head diameter is .460" or something like that. I wondered why?

Here I read it is a regular .473"

Which is it to be?

 

[Zak Smith]

The case head is the same size as 308

 

[USSR]

If I seated to close to 3.000", I could probably get some more velocity using H4831SC instead of H4350...

Zak,

Nope. I have tried H4831SC in both 6.5x55 w/142SMK's and .30-06 w/190SMK's, and you simply cannot get any velocity out of this powder. It runs at a good 125 - 150fps slower than a similar load using RL22. I am presently using VV N160 which does an excellent job in the Swede, and I have no reason to doubt it would excel in the .260Rem as well. And, of course, there's always RL22, which will probably give you the most velocity. Needless to say, H4831SC has been a big disappointment to me.

Don

 

[Zak Smith]

Two friends of mine shoot H4831SC in 260 and 260AI, with the 142's at 2850-2875 and 2920-2950 fps respectively. In 260, I hit pressure limits with H4350 before I get any powder compression. With H4831SC, I get quite a bit of powder "crunching" when seating the bullet before I hit pressure problems.

I use H4831SC in 338LM and it punts the 250gr Scenars at 3000fps...

-z

 

[Will Fennell]

NOSLER Brass

I shot my first groups with the 260 Nosler Brass this weekend. This stuff is great. Already trimmed, deburred, and sorted. With one load....140 Nosler Competition bullet and H4350.....switching from Rem Brass to Nosler cut groups from .9" down to .385".

Admittedly, with the Rem brass, all I did was trim and deburr. But I thought that was a good comparision.....Rem to the Nosler stuff.

 

[Zak Smith]

Great. I've got 50 pcs inbound to do the same test.

 

[Zak Smith]

Just finished this...


article | 6.5mm Shootout: .260 Remington vs. 6.5x47 Lapua vs. 6.5 Creedmoor