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6BR for 1000 yard varminting.

 
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  #1  
Old 09-07-2007, 11:13 PM
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6BR for 1000 yard varminting.

As most of you know, I am building a new long range varmint rifle. I was originally going to chamber it in 6x284, however, many varmint hunters are telling me th 6BR is the way to go. I started thinking that most of my shots will be from 400 to 600 yards, however, I will be shooting out to 1000 yards too. So, I started thinking the 6BR woulld be the way to go. My question for those of you who use the 6BR, when using the 105grn A-Max, how does it perform on varmints like squirrels and Pdogs at 1000 yards?

Also, if I go with the 6BR, will my 30", 1-8.5 twist, 4 groove barrel shoot the 70grn Ballistic Tip and the 75grn V-max bullets. I know it will shoot the 105grn A-Max well, but I will want to shoot the 70gn BT and the 75grn V-max. I heard the 6BR, with 1-8.5 twist barrel shoots everything from 70grn to 105grn bullets with excellent accuracy. However, I would like to hear your opinion.

Also, what velocity can I expect from a 30" pipe using the 70grn BT, 75grn V-Max and the 105grn AMax. I am thinking I should get close to 3500fps with the 70grn BT, 3450fps with the 75grn V-Max and 3100fps with the 105grn A-Max.

If I go with the 6BR, I am going to go with a no neck turn chamber. I will have it chambered for the Lapua brass. I read there is no need to turn the necks on the 6BR if your using the 6BR Lapua brass. This will make reloading much faster.

I look forwad to hearing from you guys. I know many of you have been trying to get me to look at the 6BR for my project. Well, I am starting to lean towards the 6BR.

Wildcat
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Old 09-08-2007, 04:55 PM
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Need some info.
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Old 09-08-2007, 07:12 PM
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Wildcat
My accuracy load for the 6BR with Lapua brass in a 24” 14 twist 4 groove Pac-Nor with 70gr SMK is 3550 using H-322. I am not done doing load development for the 75gr V-max but at around 3580 I started to loosen primer pockets also using H-322, I quit at 3611 but at that pressure 1 to 2 loading per case before they won’t hold a primer.
This a .272 no turn neck. All my loaded rounds measure ~.2695.

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Old 09-09-2007, 07:44 AM
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I have a 6mmBR with a 0.262" neck. Neck turning 1,100 pcs of brass was the pits.

I will go with a no turn Lapua chamber next time. The Lapua brass is good to go right out of the box.

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Old 09-09-2007, 01:50 PM
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I ve decided my long range rig will be chambered in a no turn neck 6BR using Lapua Barss with a .060 or .070 freebore. The freebore will allow me to shoot 70grn BT, 75grn and 87grn V-Max's and the 105grn A-Max, ect. Any info or recommendations would be great.

Wildcat
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Old 09-09-2007, 05:58 PM
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I'm kinda brainstorming a new rifle too. I really want a multi-purpose rifle for long range varminting, F-class and 1000 yard benchrest. The 6br looks great, especially the no-neck turn part. What's not to like? The best accuracy, low powder consumption, less barrel heat and more shots between cooling, the best brass and hardly any recoil. Did I forget great barrel life?
I probably am going with the 6mm dasher(6br improved). I just like the 40 degree shoulders. Brass dosn't stretch alot and you get alittle more powder. Most 105 grain loads use around 33 grains of powder.
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Old 09-09-2007, 11:39 PM
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Flybuster, I was originally going to go with the 6x284. However, after much debate and reserch, I decided the 6BR would be a better choice. My rifle will be for 1000 yard varminting. However, must of my shots will be taken between 400 and 600 yards, so the 6BR was the way to go.

I decided I would go with a no neck turn chamber and have it reamed for Lapua brass. Many benchrest and varmint shooters are confirming the fact a no neck turn chambered 6BR is just as accurate as a turned neck 6BR, as long as your using the Lapua brass.

I also thought about the 6 Dasher or the 6BRX, but I decided to stick with the regular 6BR. I did not want all the extra brass prep for a little extra velocity. This is going to be a fun rifle to load. I have heard Lapua 6BR brass is so perfect there is no need for turning necks, uniforming primer pockets or flash holes.

I did some load research for varminting out to 600 yards. Many 6BR varmint shooters are having excellent results with the 70grn Ballistic Tips. When using a 30", 1-8.5 twist barrel, the 6BR will push the 70grn Ballistic tip at around 3500fps, the 75grn V-Max at around 3450fps, the 87grn V-Max at around 3200fps, and the 105grn bullets at 3000+. I have been hearing and reading that the 6BR loves the 70grn Ballistic Tip for 400 to 600 yard varminting. I have heard the 75grn V-Max is doing well too. However, I am finding the 70grn BT is getting the nod. I guess I will find out.

I am thinking the 70grn BT and the 75grn V-Max will be my 100 to 600 yard loads. I will use the 105grn Scenar or 105grn A-Max for 700 to 1000 yards.

This is going to be a fun rifle to shoot. The rifle is going to be heavy, 32 pounds, with scope. It will also have a brake, so recoil will be nothing. I guess you could say I am going to be able to watch my hits and misses with ease. It's going to be fun.

Wildcat
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