7mm at 300

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Chopper
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7mm at 300

#1 Postby Chopper » Thu Feb 20, 2014 5:06 pm

Just a question for you sevenheads , what groups are you getting or expecting at 300 ? constantly ? say 7SAUM, Chop

Gadget
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#2 Postby Gadget » Thu Feb 20, 2014 5:39 pm

That's got to be a trick question !!! :oops:
Who uses a 7mm at 300. :roll:
Gadget

Chopper
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#3 Postby Chopper » Thu Feb 20, 2014 5:58 pm

No trick question , I just want to know how fantastic they are, some say they will eat 300 ? I wouldnt know, Chop

DaveMc
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#4 Postby DaveMc » Thu Feb 20, 2014 6:12 pm

Chop you just stick with the 6mm will ya - 7mm is hopeless

ratshot
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#5 Postby ratshot » Thu Feb 20, 2014 6:28 pm

who uses a 7 at 300 you ask , me

Chopper
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#6 Postby Chopper » Thu Feb 20, 2014 6:41 pm

Yeh I seen ya shoot a 60.9 at Glenrowan a few years ago :D

AlanF
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#7 Postby AlanF » Thu Feb 20, 2014 6:57 pm

My impression is a good 7mm will be capable of 60.10 at 300, but it'll be more likely to get one at 800. An average 7mm will still hold the 6 ring at 300, which is the main thing that matters. Although even that doesn't matter at some events e.g. Tassie Queens starts at 500.

Chopper
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#8 Postby Chopper » Thu Feb 20, 2014 7:11 pm

Has anyone down loaded a 7 for the shorts ? I can recall that was the trick and flavour of the month for 308 , Chop

AlanF
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#9 Postby AlanF » Thu Feb 20, 2014 7:29 pm

Chopper wrote:Has anyone down loaded a 7 for the shorts ? I can recall that was the trick and flavour of the month for 308 , Chop

I usually use 168s up to about 6 or 700.

Chopper
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#10 Postby Chopper » Thu Feb 20, 2014 7:44 pm

That makes sense, reduction in recoil ? :wink:

AlanF
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#11 Postby AlanF » Thu Feb 20, 2014 7:48 pm

Chopper wrote:That makes sense, reduction in recoil ? :wink:

Yes, and easier on brass. Even the SMK175s are noticeably easier on primer pockets than the Berger 180s.

Chopper
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#12 Postby Chopper » Thu Feb 20, 2014 8:08 pm

I built and shot a seven some time ago, and cranked more out than in , so i got rid of it , too good for me :lol: poor bloody coaches in FO have a job, :lol: Chop

bruce moulds
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#13 Postby bruce moulds » Thu Feb 20, 2014 8:11 pm

chopper,
any good 7mm rifle should easily hold the x ring at 300 if loads are worked out properly.
the 168 gn bullets equal the 140 gn 6.5s in b.c., so if you want less recoil, have a barrel chambered for something like the 260 rem.
alan,
would not case life be related to balancing powder charge to bullet?
keep safe,
bruce.
"SUCH IS LIFE" Edward Kelly 11 nov 1880
http://youtu.be/YRaRCCZjdTM

RAVEN
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#14 Postby RAVEN » Thu Feb 20, 2014 8:15 pm

Not that I shot for group Chop
My rule of thumb is .3moa average
The one occasional tight group doesn’t necessarily make it a winner.

I would say the 6mm would be more likely to group tighter at that short range.
I usually determine my grouping ability (potential Accuracy) on the av SD of group.
RB
:D

Chopper
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#15 Postby Chopper » Thu Feb 20, 2014 8:17 pm

Hey Bruce, g,day , Lets see some scores and results, thats what I was originally , asking , Chop


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