Thread: What caliber are you shooting F-Open with?

Originally Posted by Kiwi Greg

Fixed it for you

The 6.5x47 Lapua would be my choice in 6.5, in 6mm it would be the 6 Dasher

The lack of recoil & barrel wear makes up for their ballistic disadvantage to the big sevens & thirties in all but the worst conditions

Haha, yeah neat cartridge. Pitty about the factory ammo situation though.

I shot a 6 brx in the states. The 6mm offerings are pretty awesome. Zero recoil on heavy precision rifles

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I shot a 6mmBR and a 6.5x55 both with 30" True Flite ultra match barrels no factory ammo for the 6mmBR but then you need to reload to do any good
Lapua 6.5x55 is good enough to start with you can better it with reloading,
If you go with the 6.5 Creedmoor with 140 and heavier projectiles you will not get anywhere near 3200fps my 6.5x55 was doing 2920fps with 139 Lapua
even the 6.5x284 guys had to back them off to 3100fps to get accurate loads barrel life is short with the 284 case normal load is around 55 grains
in the 6.5x55 my load was 46.6 grains barrel is still good after 2500 rounds the 6.5x284 last 1000 if you are lucky
If I was to get back in to F class Would be looking at the Creedmoor

I am using the creedmoor

shooternz : what powder/primer/case were you using in the 6.5x55?

Originally Posted by shooternz

...
If you go with the 6.5 Creedmoor with 140 and heavier projectiles you will not get anywhere near 3200fps...

Thanks shooternz - appreciate the detailed feedback and advice.


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Originally Posted by Friwi

I am using the creedmoor

Hi Friwi,
Any chance you can share a bit more about what you shoot with - brand, barrel length, optics.

Anything you plan to change on your current setup?


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Originally Posted by janleroux

For those of you shooting long range F-Open, can you please indicate what caliber you use, and any advise you can offer a beginner that is keen to get into the sport?

I like 6.5 Creedmoor, but looking at for example the Seddon Rifle Range rules, it states:

“Ammunition that exceeds any one of the following performance are not authorised for use on Seddon Range:
a. A maximum muzzle velocity (MV) of 1,000 m/s (3,280 f/s),
b. A maximum muzzle energy (ME) of 4500 J (3,319 ft/lbs).”

Some of the Creedmoor ammunition could be non-compliant, so how a big limit is it?



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As others have said the 6.5 Creedmoor will not be an issue, basically any non magnum 6.5mm, 7mm or 30cal will be well under those limits and a fair portion of the magnums will also be safe.

6.5 Creedmoor is a great starting cartridge, the availability of affordable match ammo is a massive advantage to a non-reloader and even an advantage to those who reload.
I personally own a 260 but if I were buying a new rifle the Creedmoor would be on the list.
6.5x55 is also a good cartridge, definitely not a new sexy cartridge, but a good performer with plenty of factory ammo available and lots of reloading data available.

If you are going to be reloading the 284win is a great cartridge, good ballistics, good barrel life, not too much recoil, good availability of dies (and brass to some degree), biggest issue is it's definitely a reload only cartridge.


If the rifle is going to be a purpose built F-class set up, I'd be going for a 7mm and go for the 284win.
I don't own a rifle in the caliber but a friend does and it's a great performer.

Originally Posted by Beetroot

...If the rifle is going to be a purpose built F-class set up, I'd be going for a 7mm and go for the 284win.
I don't own a rifle in the caliber but a friend does and it's a great performer.

Thanks Beetroot. Valuable info and advice!



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Originally Posted by Beetroot

If the rifle is going to be a purpose built F-class set up, I'd be going for a 7mm and go for the 284win.
I don't own a rifle in the caliber but a friend does and it's a great performer.

Yeah 180's at 2900 make a fairly compelling case.

Originally Posted by janleroux

Hi Friwi,
Any chance you can share a bit more about what you shoot with - brand, barrel length, optics.

Anything you plan to change on your current setup?


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Hi,
First I am not a hardcore weekend competitor. I just shoot at my local range and. I sometime participate in a local match when I feel like it.
My rifle is a tikka 590 into a heavy laminated stock. Barrel is a 27" true flite ultra match. First barrel ever chambered by true flight in 6.5 creedmoor at the time.
If I wanted to be more competitive, I would go Barnard -S or P action. In 6.5 I would try to use the 147 gr Elm, ( so 1 in 8 twist) seated into a 6.5x55ai or 6.5-284 case. In 7 mm the 284 case as stated above.
If you want a barrel that last you more than 1 season then yes 6.5 creedmoor ,6.5x47 or even 6mmbr.

Out of interest and not wanting to drag this off topic, but do we have any 6mm Creedmoor shooters yet?

Originally Posted by Flyblown

Out of interest and not wanting to drag this off topic, but do we have any 6mm Creedmoor shooters yet?

Have seen a few in the states running them and it sure does look like a neat round!

Some ammo are available at the local gun city. But except a few ruger Prc I am not sure if there are many reamers in the country for that round.

Originally Posted by Flyblown

Out of interest and not wanting to drag this off topic, but do we have any 6mm Creedmoor shooters yet?

I have a RPR with a SS Proof 6 Creedmoor barrel it goes very well

The Hornady factory ammo I have tried shoots very well in it

I have had a reamer for ages, https://www.nzhuntingandshooting.co....8-tikka-24749/

Lapua even make brass for it now

I have a 6mm Creedmoor barrel for my Bighorn switch barrel rifle. Running the 110gr SMK's with hardly any recoil and pretty impressive ballistics. It's set up as a PRS style rig rather than F Class

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