Thread: 7mm Rem Mag or 284 Win.

I'm getting 2940 fps out of 284 22in bbl with 160TMKs & Superformance powder. Another 30 - 40 fps with RL17 but accuracy not as good.

Originally Posted by chainsaw

I'm getting 2940 fps out of 284 22in bbl with 160TMKs & Superformance powder. Another 30 - 40 fps with RL17 but accuracy not as good.

Thats impressive.
Is that on a long or short action?
Have you tried 180gr projectiles with superperformance powder?

Originally Posted by Beetroot

Thats impressive.
Is that on a long or short action?
Have you tried 180gr projectiles with superperformance powder?

Yeah, got me smiling. Its built on a Tikka action (was 2506) & TF UM bbl so did not have to piss round with bolt stop etc and plenty of room in the mag. Want to try the 175gn Berger Hunter Elites as next step - but that will have to wait till winter.

Originally Posted by chainsaw

Yeah, got me smiling. Its built on a Tikka action (was 2506) & TF UM bbl so did not have to piss round with bolt stop etc and plenty of room in the mag. Want to try the 175gn Berger Hunter Elites as next step - but that will have to wait till winter.

There seems to be a lot of interest in 284 Win lately, if you do any load development make a thread on here.
Whilst I don't need a new rifle in the slightest I am somewhat considering a 284 build. A mate has all the gear to neck up Lapua brass, so makes it easy for me.

Originally Posted by Beetroot

There seems to be a lot of interest in 284 Win lately, if you do any load development make a thread on here.
Whilst I don't need a new rifle in the slightest I am somewhat considering a 284 build. A mate has all the gear to neck up Lapua brass, so makes it easy for me.

Yeah the old 284 win is a pretty effiecient cartridge when run in a long action where you can seat bullets right out to make best use of the full case capacity. I have two 284's a 22" and a 17". The 22" hardly ever gets used now, as the 17" one is much handier and suppresed so just easier all round. And i have a 22" 7mm SAUM.

I like the 284's but honestly going 7 Rem Mag is a whole lot easier. Buy a factory 7RM, and be done with it, brass is easier, no pissing around with necking up 6.5 lapua, no drama with having to neck turn (if you used a tight neck reamer like i did when i did my T3 708 to 284 conversion).

Koozas 20" T3 7RM is near the perfect all rounder really, and very easy and low cost to achieve it. Job done

Originally Posted by Beetroot

There seems to be a lot of interest in 284 Win lately, if you do any load development make a thread on here.
Whilst I don't need a new rifle in the slightest I am somewhat considering a 284 build. A mate has all the gear to neck up Lapua brass, so makes it easy for me.

I had Buzzmans old 284 out today. 19 bbl running 2760 with 162 eld m's over h414. Grouping 3/4 moa or better out to 600. I like it, but it is a step behind the 7mag velocity wise.
Boots way less though, comfy to shoot even extended strings in the light tikka.

Rem Mag will be easier to get brass for, but ballistics are closely matched, a deer at 500 yards won't know the difference.

6.5x284 brass is easy to get simply size and load.

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Last issue of NZ Hunter magazine had a good article on the "super pig" chamberings (pros and cons). Worth a read.

Went through this myself. Ended up going 7 Rem mag. Much easier to find brass for. Rechambering is an automatic $200 which buys a bit of ammo. Went 22" barrel and brake. My most accurate loads are just under 3000fps.

Thanks very much for the input lads.

I think I will go the 7mm Rem Mag route. Any one have pet loads for 20 inch Rem? Whats the concensus for the best pill from 30 to 500, We do ask alot of a bit of copper and lead!

Cheers

Troy

Originally Posted by Troy Tempest

Thanks very much for the input lads.

I think I will go the 7mm Rem Mag route. Any one have pet loads for 20 inch Rem? Whats the concensus for the best pill from 30 to 500, We do ask alot of a bit of copper and lead!

Cheers

Troy

150lrab is a good place to start mine didnt like em tho