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Look What Was Hiding!! A 264 LBC!!


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#1 ONLINE   GLShooter

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Posted Aug. 24 2013 - 04:36 PM

I got interested in F-Class shooting last year and decided I needed to give it a go. I started out shooting 500 yards with a 6X45, moved to a 6X6.8 and then a 243 LBC.  I learned a great deal on wind etc. but the allure was not the 500 yard line for me it was the big 1000 that fascinates me. The 6X6.8 and the 243 LBC would stretch out that far but I wanted something with a bit more inherent reach.

 

Enter the 264 LBC.  I ordered up a 24" bull barrel 264 LBC 1:8 from Black Hole and waited like any good guy. The tube showed up and I had Ritch put it together for me. Like many things in life things happen so the upper sat in the corner while I attended to the various things we all encounter. The 1000 yard matches for the winter here in Phoenix will be here soon and I finally got some time to get some loads together for a first shake down. 

 

I wanted 100 good cases and had some new Alexander stuff on the shelf. I selected the 123 Nosler Competition bullet for my long range as the BC is listed at 0.510. I wanted to see if or how overall length would make a difference so picked three powder charges from some reference material I had from other shooters and set the rounds up slightly off the lands  and pulled them back a few thousands at a time. Just a quick try out for a get acquainted day out in the desert.   Rather than waste the big boys for sight in I decided to grab some Sierra 85's for initial rounds down the tube.  I will use this one on PD's down the road so a varmint load would be needed anyway.

 

Here is the rig as tested. 6.5X20 Vortex Viper scope, 24" 1:8 3 groove polygonal Black Hole stainless bull barrel. The gas block is a JP but will be switched to a BTE as soon as I can pick one up. The lower is a basic home build with a a Geissele High Speed Match trigger with two pounds of #8 shot in the butt. The rifle will be shot sans bipod using a Bald Eagle front rest and Protector rear bag.

 

DSCN0146.jpg

 

One I got out to the desert I did a quick bore site and used up four rounds getting on the paper at 100. I had only loaded ten rounds of the 85's at two charge levels with five at each so decided to shoot two three shot groups.  Once I got ready I put on my game face and went to work. After the first two groups I almost put the gun away and you can see why here.

 

264LBC85SIERRA8-18-13_zpsfa0d511e.jpg

 

I wish they all shot that well and I wish I shot that well every day.  I am far from being competitive bench rest skilled.

 

I proceeded to shoot the 123 Noslers and found that they need some more work. Sub-MOA was achieved with all three load levels with six of the nine charge/depth combinations hitting that goal.  It is obvious that the barrel is a shooter and will take a bit more study.  Here is one that I think is a keeper that I will reshoot on my next trip out. The others showed some promise and I will be tweaking on them. Good but not 1000 yard good.

 

264LBC123NOSLER8-18-13_zps2e1f4faf.jpg

 

The loads across the board showed no pressures with swipes being non-existent. The speeds were starting to get up to where I want them but anything at 2650+ will be OK with me.  I want to play with a bit more seating depth and bump the charges up a bit.  The poly rifling is really paying off in the velocity department and seating long is helping also.

 

Like I said a first attempt. I hope to find many more little bug holes hiding in this barrel.  With luck I will be able to shoot myself into Master Class this winter.

 

Greg


Edited by GLShooter, Aug. 24 2013 - 05:21 PM.



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#2 OFFLINE   superstratjunky

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Posted Aug. 24 2013 - 06:34 PM

So when are you going to stretch it's legs? :oh yea:




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#3 ONLINE   GLShooter

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Posted Aug. 24 2013 - 07:09 PM

So when are you going to stretch it's legs? :oh yea:

 

Soon if all works out.

 

Greg




#4 OFFLINE   superstratjunky

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Posted Aug. 24 2013 - 07:21 PM

 

Soon if all works out.

 

Greg

Nice! Don't forget the evidence & porn. :wink:




#5 OFFLINE   Dark Prophit

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Posted Aug. 24 2013 - 09:41 PM

How do you think a 16" would do with the 264?


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#6 ONLINE   GLShooter

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Posted Aug. 24 2013 - 10:02 PM

If I was going that short a 6.8 would be a better choice,

 

Greg




#7 OFFLINE   KZero

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Posted Aug. 24 2013 - 11:33 PM

That's some awesome shooting, Greg!  :thumb:




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#8 ONLINE   GLShooter

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Posted Aug. 24 2013 - 11:40 PM

That's some awesome shooting, Greg!  :thumb:


I did a Newby and just closed my eyes.. Thanks.

Greg


#9 OFFLINE   Dark Prophit

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Posted Aug. 25 2013 - 12:15 AM

If I was going that short a 6.8 would be a better choice,
 
Greg


Well in this state 14.5 with perm is the shortest. So 6.8 and 264 are both up for grabs.


#10 OFFLINE   KZero

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Posted Aug. 25 2013 - 12:36 AM

I did a Newby and just closed my eyes.. Thanks.

Greg

 

Yeah, right.   :wink:

Good job.




#11 ONLINE   GLShooter

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Posted Aug. 25 2013 - 02:16 PM

Well in this state 14.5 with perm is the shortest. So 6.8 and 264 are both up for grabs.

 

 

The 6.8 was designed to run in short barrels. A Grendel just gives up all its ballistic advantage in the short tubes. My feeling is that if it is just for fun run anything you like but if it is for serious hunting I would still go 6.8 if I want to go under 20". 

 

Greg




#12 OFFLINE   Dark Prophit

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Posted Aug. 25 2013 - 03:13 PM

 
 
The 6.8 was designed to run in short barrels. A Grendel just gives up all its ballistic advantage in the short tubes. My feeling is that if it is just for fun run anything you like but if it is for serious hunting I would still go 6.8 if I want to go under 20". 
 
Greg


How much range would I be sacrificing for the 264?


#13 ONLINE   GLShooter

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Posted Aug. 25 2013 - 03:19 PM

How much range would I be sacrificing for the 264?

 

I think the accuracy range would be there quite a ways off but you lose too much of what you can have with a longer barrel in the 6.5.  In the killing world I think they would be in spitting distance of each other. Kind of like taking our wildcat 6X6.8 and sticking it in a 16" barrel. All you have then is the equivalent of a 20" 6X45. Not worth the hassle.

 

I shoot a 20" 243 LBC and a 24" version. I am loosing about 140 FPS. Not a lot but in my long range world that can be substantial.  Taking a 264 from 24 down to 16 would cost you about 250-300 FPS at a guess.

 

Greg




#14 OFFLINE   Dark Prophit

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Posted Aug. 25 2013 - 03:22 PM

 
I think the accuracy range would be there quite a ways off but you lose too much of what you can have with a longer barrel in the 6.5.  In the killing world I think they would be in spitting distance of each other. Kind of like taking our wildcat 6X6.8 and sticking it in a 16" barrel. All you have then is the equivalent of a 20" 6X45. Not worth the hassle.
 
I shoot a 20" 243 LBC and a 24" version. I am loosing about 140 FPS. Not a lot but in my long range world that can be substantial.  Taking a 264 from 24 down to 16 would cost you about 250-300 FPS at a guess.
 
Greg


Damn that is alot at distance, maybe you are right, 6.8 maybe my next upper build.


#15 OFFLINE   Warlike

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Posted Sep. 04 2013 - 09:43 PM

what do you figure is gonna be the top end on the 123s?




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#16 ONLINE   GLShooter

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Posted Sep. 04 2013 - 10:14 PM

The poly barrel is a factor that I need to explore. I think 2800 is doable and maybe a bit more. 2700 is easy but the accuracy is the biggest area off concern. I want a 1/2 MOA I also want a minimum of 2750. Time will tell.

Greg


#17 OFFLINE   Dark Prophit

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Posted Mar. 11 2014 - 11:52 PM

264 is looking brighter in my future. Not anytime soon but it will happen.


#18 OFFLINE   Retcop

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Posted Mar. 12 2014 - 05:46 AM

Great shooting, and loading.

 

How is the rifle supported?




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#19 ONLINE   GLShooter

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Posted Mar. 12 2014 - 12:51 PM

Those were shot from a bipod. I have bben using it as pictured with a rear bag. In the matches in the future I will use a full pedestal rest and rear bag. The rules only require an attached bipod on 223 and 308 that is FTR calss. The others (Open) let you use about anything undrer the sun. I invested about $800.00 on a new high speed F-Class bipod that looks like a bridge for FTR  and a full Bald Eagle rig for Open class.

 

Greg




#20 OFFLINE   kingfamous

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Posted Mar. 12 2014 - 02:02 PM

Greg,

 

You like the .264 better than the .243 for 1000 yrd + ?







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