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6.5-06 or 6.5 - 284

 
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  #1  
Old 12-27-2006, 04:33 PM
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6.5-06 or 6.5 - 284

I want to build a rifle for F-class and my own personal longrange target shooting fun. Should I build a 6.5-06 or a 6.5 -284. I see from some load data the the 06 will get me about 200fps over the 284 with 160gr bullets, so I am leaning toward the 06.

What twist should I go with to shoot these heavy bullets? will 1-8 do it?
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Old 12-27-2006, 04:44 PM
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Re: 6.5-06 or 6.5 - 284

Benchrest shooters are using the 6.5x284 in LARGE numbers. You rarely see anyone using the 6.5-06 competitively. There must be a reason.

I went 6.5x284 in my newest heavy varmint rig and have been very happy with the results. However, groundhogs would probably prefered that I didn't. [img]/ubbthreads/images/graemlins/grin.gif[/img]
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Old 12-27-2006, 05:31 PM
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Re: 6.5-06 or 6.5 - 284

After more research they look almost identical powder volume and efficiency wise and with the 6.5-284 being more popular I think I will follow the herd. But what twist to shoot 140gr and up to 165gr bullets?
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Old 12-27-2006, 05:47 PM
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Re: 6.5-06 or 6.5 - 284

I have an 8 twist and shoot 139gr - 142gr bullets almost exclusively. I've had good results with Sierra - Lapua & A-Max bullets. The Berger 140 VLD's look good but I haven't tried them yet.

Not sure about the proper twist for bullets heavier than 142gr in the 6.5's.
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Old 12-27-2006, 06:43 PM
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Re: 6.5-06 or 6.5 - 284

I shot a 6.5-06 AI for four years in comp. It won more than its share, and several good shooters are using them too.

Biggest reason people like the 6.5-284 is no fireforming and short vs long case.

However, the 6.5-06 is not the barrel burner that the 6.5-284 is. Most competitive 6.5-284s last 700-no more than 1000 rds and still competetive.

Think for fclass I would look at the straight 6.5-06 in 8 twist or better yet, the 6-47 in 8 twist. More FPS, good BC bullets, low recoil and seems to be very good barrel life unlike the 6.5-284.

BH
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Old 12-27-2006, 07:21 PM
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Re: 6.5-06 or 6.5 - 284

yep 8 twist, the old 155 smk's done well with it.
JS
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Old 12-27-2006, 09:35 PM
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Re: 6.5-06 or 6.5 - 284

[ QUOTE ]
yep 8 twist, the old 155 smk's done well with it.
JS

[/ QUOTE ]
Last time I checked (30seconds ago)Sierra's heaviest SMK in 6.5 (.264) was a 142gr. if they did make a 155SMK it would need faster than a 1-8" twist, or if you are talking about a 30cal 155gr SMk (that they do make) a 1-8" twist is too fast. very confusing.
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