6mm-284
- Thread starter farmer44
- Start date
CJ6
Silver $$ Contributor
What's your intended use?
I've got 3 currently, had them since about 2000-2001.
You don't want to shoot strings with them or your barrel will be toast real quick.
I had 2 of mine built for coyote (stands) and 1 for walking coyote.
Stand guns were Rem 700 SAs with sleds (SS) tracker ST1000L stocks and Bill Shehane bbl blocks, 29.5" Hart bbls.
The walker was on a Rem mdl 7 with 20" bbl. I don't recommend the short barrel version way too inefficient.
All were 12 twists and barreled by Hart.
H 1000 is the speed king with either 87 V max or 88 Bergers. Accuracy is pretty close between the 2 of them.
I'd concentrate on your cold bore zeros and get that first shot on your critter.
6.5 284 Lapua reformed is what I use and in the high node 3820-3845 they'll last 4-5 firings.
I've got 3 currently, had them since about 2000-2001.
You don't want to shoot strings with them or your barrel will be toast real quick.
I had 2 of mine built for coyote (stands) and 1 for walking coyote.
Stand guns were Rem 700 SAs with sleds (SS) tracker ST1000L stocks and Bill Shehane bbl blocks, 29.5" Hart bbls.
The walker was on a Rem mdl 7 with 20" bbl. I don't recommend the short barrel version way too inefficient.
All were 12 twists and barreled by Hart.
H 1000 is the speed king with either 87 V max or 88 Bergers. Accuracy is pretty close between the 2 of them.
I'd concentrate on your cold bore zeros and get that first shot on your critter.
6.5 284 Lapua reformed is what I use and in the high node 3820-3845 they'll last 4-5 firings.
Kings X
Gold $$ Contributor
Mine is a 30" Brux 1-8" for F Class back in 2010
Found H4350 and with 105 Hybids to run 3260
With RL -25 and and 105s got 3393
Rl-25 and 115s at 3296
Also Retumbo with 115s @ 2912.
All those went under 1/2 MOA to about 800 yards then went wild at 1K.
Next barrel I had nitrided - didn't shoot.
Found H4350 and with 105 Hybids to run 3260
With RL -25 and and 105s got 3393
Rl-25 and 115s at 3296
Also Retumbo with 115s @ 2912.
All those went under 1/2 MOA to about 800 yards then went wild at 1K.
Next barrel I had nitrided - didn't shoot.
rickiesrevenge
Silver $$ Contributor
I wouldn't say hot rods are practical. But they're fun! 6x284 will push 55gr ballistic tips 4300+ with imr4350 or n555
WyleWD
Silver $$ Contributor
I'm 100% with posts #2 and #6 above. I've owned 2 of them. Very accurate varmint caliber! But keep your shot strings short. CJ6 is just about right coldbore and second shot are the most important and will keep your barrel more of a long time friend. Use a 26" or longer barrel.
My 2 longest shots on coyotes were made with the last 6-284 I owned. And with a 10-12tw barrel with 75gr Vmax or 80gr Blitz Sierra they are NOT a fur friendly choice on coyotes, but easy to find.JME. WD
My 2 longest shots on coyotes were made with the last 6-284 I owned. And with a 10-12tw barrel with 75gr Vmax or 80gr Blitz Sierra they are NOT a fur friendly choice on coyotes, but easy to find.JME. WD
urbanrifleman
Site $$ Sponsor
So 284 win is very popular in F Class. People seem to not mind the shot strings. I can't imagine the 6mm with the same powder would get the barrel any hotter. But then I don't know.
Eh? There's a world of difference between 6-284 and the parent 'straight' version, just as there is between 243 and 308 Win.
The issue is [case capacity to] bore ratio. The 284 Win case holds ca. 66gn water and 7mm bore diameter has a bore area of 0.063 sq in. Divide the former by the latter and you get a ratio of ca. 1,050. Reduce the bore size to 0.243-inches and its area drops to 0.046 sq in, a reduction of 27%. All other things remaining equal (powder burn temperature and peak pressure) you're shoving the same amount of heat down a bore with getting on for a third smaller surface area - so everything gets a lot hotter! The 'bore capacity ratio' for 6-284 is ca. 1,410 (65gn water capacity divided by 0.046), a huge rise in this metric over the 284's 1,050 value.
The 7mm Rem Magnum ratio is smack on 1,300, and this was long regarded as the boundary for entering true 'over-bore' status with all that entails with respect to barrel life. (Modern powders have raised the boundary .... but even so!)
There is a useful table in an old Accurate Shooter Bulletin re this:
https://bulletin.accurateshooter.com/?s=overbore+cartridges&submit=Search
so you can see where 6mm-284's value lies.
wboggs
Gold $$ Contributor
I remember when Bob Hutton published data on the cartridge
many years ago and results were spectacular. Shoot it slow, clean it often and replace the barrel as necessary.
Everyone knows it is on the extreme edge.
If had already had the brass and dies, I would have some fun with it.
Good luck.
Upgrades & Donations
This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.