OzFclass

I have just purchased a Omark .223 and want to replace the barrel for 1000 yard bench rest. Any suggestions on barrel manufacture twist and length

Hey mate, first have you got an adaptor? Will need one for any of the top end barrel makers. Also you probably can't run and higher pressure cartridges in the omark action so your probably best with a 6mm, 6.5mm or 7mm cartridges.

Thanks Quick
Yes I will need an adaptor but I want to stay with the.223 cartridge

Can I ask why the 223 for 1000 yd BR? Many much better cartridges which will surpass it with pure ease. 6mm Dasher springs to mind.

If your set on the 223 I'd be thinking a 7T barrel and running the 90gr bullets.

It's for a junior and the range is between 300 to 1000 yard. I was think of 1 in 8 twist 80 grains 28 inches long?

So will he be shooting FS, in that case id go 30" 8T with 80gr SMK.

Grumpe,

For long range BR the only advantage of the 223 will be reloading costs, particularly if you already have suitable dies and brass. If light recoil and accuracy is the main attraction of the 223, I agree with Quick that a 6 Dasher or similar would be a better option.

Alan

Thanks Shaun that's right and a manufacture of a barrel ?

I'd for sure I the Dasher or similar unles your shooting FS as its a proven round and has records to back it up aswell. Straight BR also but I've starting thinking that it doesn't quite have the legs for consistant 1000yd shooting even though its performed very well.

I nearly built a Dasher until I bought the 6x47L.

I like Kriegers but am also going to grab a TruefFlite aswell as I've heard many awesome things about them. Any top barrel maker will do the job for a 223 FS rifle.

Grumpe,
Your choice of barrel maker, depending on your choice of projectile, 1:7.5 will do for the 80grners, you will need a 1:6.5-7 for the 90grn projectiles. So it depends on which class you want to shoot in
getting enough powder in the case will be your biggest and most dangerous problem if your trying to compete against 6mm's 6.5's 7mm etc on a windy day. They shoot quite well in calm conditions.
The best .223 barrel I ever had was a 30" Maddco. It shot well to 900 yds.
Geoff

I have a 28" 8twist pacnor and it shoots 80gr amax at 2905 and is very accurate.

I have a 7 twist barrel put on the last 223 i built but i havent had time to start testing 90gr projies yet.

I have 2 Kreiger .223 barrels. The 1-8 twist shot well from the start with 80g Sierra's.
The 1-7 has been a total PITA from the start, and despite using different chambering options, 80grn Amax, Nosler and Sierra, 2206H and 2208, different primers, I have not had a decent score from it in over 3 years, and 1000 + rounds.

I used to run a 22BR with 90gr bergers in a 1:7. It shot very well. With 80's I didnt rate it. Stay with 1:8 if you want to do a 223. But for 1000yd BR I would favour a straight 6BR and 107gr sierras in an 8 twist much more. Just as easy to reload, minimal recoil and deadly accurate.