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284 W wins open class
 Moderated by: WildBill
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 Posted: Mon Nov 10th, 2014 11:21 PM
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swampshooter

 

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The 284 W won the F-class open division. 7mm RSAUM took 2nd. and 3rd. two more 284's were in the top 6, along with one 300 WSM. Scores were very close with only one point or an x count separating the top shooters.



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 Posted: Sat Dec 13th, 2014 04:40 PM
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2nd Post
dadajack
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I wonder what the BC differences in bullets used based on muzzle velocities was. It sounds like any of those three calibers are capable of winning at any given tourney. The shooter makes the difference, as well as the equipment at that level. I doubt any of those guys were shooting stock actions or barrels.



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 Posted: Sat Dec 13th, 2014 06:19 PM
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swampshooter

 

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The 7mm bullets ballistic coeffificient is higher than any of the 6.5. The 30's go higher, 235 gr. bullets, etc. but to give these projectiles good velocity the recoil level goes way up. A normal match is 60 record shots plus sighters. Time allowed is normally 1 minute per shot. A major match extends over a 3-5 day time frame, with at least one 60-rd. match shot every day. 6mm's of one sort or the other, 6BR, 6 Dasher, etc. and 6.5's, 6.5x47Lapua and 6.5x284 do very well at 600 yds. on a fairly normal day. But can't compete with the 7's when the wind picks up. At long range some shooters are doing well with the 7RSAUM, 7WSM, and 300WSM but the 284 or 284 Shehane are probably the most popular calibers. The Australian team won the World Championship shooting 284's this year and a 284 won the U.S. Championship. G1 BC's of popular 7mm 180 gr. bullets run .660-.690 and pointing them improves that 5-10%. Berger and JLK are very popular bullets. I shoot 180 gr. Sierra MK's pointed, but nation wide I'm not anywhere near the top of the pack. I'm just too old, but I enjoy shooting.
We had a fella show up at a long range match one time with a 300 RUM. At the end of the first relay he asked "Do I have to finish?" That was the end of his long range shooting. Actually the 308 shooters, FTR, are shooting some extremely good scores, right on the heels of the best F-Open shooters. FTR shooters outnumber F-Open shooters at many matches. .308 with a 30" or 32" bbl. gives the heavy 185 and 200 gr. bullets good velocity.

Last edited on Sun Dec 14th, 2014 12:15 PM by swampshooter



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Velocity is like a new car, always losing value
BC is like diamonds, maintaining value forever


 Posted: Mon Dec 29th, 2014 01:26 PM
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SKami
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Swamp shooter, what velocities are they shooting for in the .284 w? A 180-185 grain bullet still seems pretty stout for those of small stature( like me), especially shooting a match-that's why I'm "practicing" with the 6.5 (260 rem), it's 140 gr B/C is still higher than any of the other 140 grain bullets out there, and I'm able to get close to 2900 fps, I'd like to try the 7mms just to have a weightier alternative, should I ever get lucky enough to hunt larger game. And the high B/C's of the sevens intrigues me.



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 Posted: Mon Dec 29th, 2014 03:17 PM
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5th Post
swampshooter

 

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Most 284 F-class rifles are pushing 180 gr. bullets at around 2800 fps. The barrels are long and heavy. These are strictly target bullets, and target rifles. My rifle weighs just under 22 pounds with scope. 1 1/4" straight no-taper barrel, 1 in 9, 32" long. It's a beast, not a hunting rifle in any way, shape or form. 284 Shehane is very popular also and gets 60-75 fps more velocity.



____________________
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NRA certified pistol coach-Retired
NRA classified Master, F-Class mid-range
Velocity is like a new car, always losing value
BC is like diamonds, maintaining value forever


 Posted: Mon Dec 29th, 2014 05:16 PM
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6th Post
SKami
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Joined: Fri Mar 29th, 2013
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My favorite chambering is:: .308W
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Thanks for the reply, I'm aware of the weight of the target rifles-my savage LRP is no "mountain rifle" at 15+ lbs with the scope, but berger does make a hunting VLD, with a .659 B/C, and right now I'm only able to shoot to 500 yrds off a bench, so it'd be another toy, I guess. Just really liking the high B/C calibers right now-always keeping my eye on what the pros are using. Was more interested in velocities, and what length barrel you need to get'em-thanks again!



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 Posted: Mon Dec 29th, 2014 11:34 PM
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7th Post
swampshooter

 

Joined: Sun Aug 3rd, 2008
Location: Texas USA
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Are you a handloader?: Yes
Favorite type of cartridge to load?: I load everything!
My favorite chambering is:: .204, 284, 7RM, 30/06
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The 284 would not be my choice for long range hunting. If I was going to indulge in that area I would choose a big .338.



____________________
NRA Endowment member
NRA Range Technical Team Advisor
TSRA member
NRA certified pistol coach-Retired
NRA classified Master, F-Class mid-range
Velocity is like a new car, always losing value
BC is like diamonds, maintaining value forever


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