Win75
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Post by Win75 on Dec 19, 2011 14:43:10 GMT -8
I am going to build a 6x45 upper. I plan on using it for plinking and possibly some stand deer hunting.
The question/questions are:
I want a heavier barrel contour with a target crown so I am looking at the: 20" 6x45 Match Grade Bull Profile Rifle Length Gas System .936 Gas Block 1x10 Twist; 24" 6x45 Match Grade Bull Profile Rifle Length Gas System .936 Gas Block 1x10 Twist; or the 20" 6x45 Standard Profile Rifle Length Gas System .750 Gas Block 1x10 Twist; 24" 6x45 Standard Profile Rifle Length Gas System .750 Gas Block 1x10 Twist.
Should I go with the 24" barrel for more velocity? Do I need the Bull profile or standard profile?
If I had seen these assembled into complete rifles, I would not have these questions.
Thanks for your comments.
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Deleted
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Post by Deleted on Dec 19, 2011 15:06:53 GMT -8
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Post by letaz77 on Dec 19, 2011 15:14:15 GMT -8
Hey win75,
6x45 is the great little cartridge that could. It is good enough for deer as long as you do your part in shot placement. For the heavier selection I would recommend a faster rate of twist than 1:10, 1:9 should be good enough for bullets up to 100 grains. For even heavier bullets I would suggest you examine the possibility of a bigger cartridge.
On regards to the barrel profile. Bull doesn't necessarily mean more accurate. The contour has more to do with the application than with the accuracy. If you are planning to be on a stand and not hiking that rifle around much, I would go with the bull barre, however if you will do some stocking and/or have to hike quite a bit to get to your final firing position then standard profile is the way to go.
The only difference between 24 vs 20 is only a matter of velocity. 24" will make the bullet go faster. I should not matter if you are shooting anything between 50 to 350 yds away (which should be your engagement distance to get a clean kill with this little cartridge). if you are hunting in the brush a shorter barrel is considerably more manageable than a longer one. If you are plinking at long distances, then yeah, 24" is the way to go.
Here comes my opinion. I would go with a standard profile, 1:9, 20" barrel because it offers a great compromise between performance, weight, and ease of handling....You still would have enough rifle to engage targets at past 750 yds. Just my $.02
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Deleted
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Post by Deleted on Dec 19, 2011 18:06:05 GMT -8
I cannot talk for the 24" because I am still waiting for mine but in all the other lengths and and twist letaz is giving some good advice. I would maybe stay in 1:9. I might be wrong but I think that in any case the BH intention is to switch to the 1:9 as the standard. The are pretty good bullets for the 1:10 for deer too but it would be a pity to discard some of them due to that small difference. The 6x45 is a very effective 250yards+ white tail round. The 80gr TTSX is devastating just like the Noster BT, both very good bullets. I also like the V-max 87gr but I have no test data on 1:10twist. My theory is that 20" still has some room to still accelerate that combined with the poly rifling and VLD loads might give the additional edge but 24" might be too much due to the limited powder. We'll find out. I will try to squeeze every single inch but I do not have a baseline yet. Next powder will be superformance to see if we can do something with it in the 24". It is slow so in 20" it did nothing. W748 with BR primers for the lighter bullets, faster shorter barres and Varget in 20" for hunting always a good performer. If you are going to hunt from a stand just choose whatever weight and legnth but for quicking the woods I do not like anything longer than 20". Ideally 16 or 18 that would not be too bad in this round too but 20" should not be too bad length wise and will give the extra speed. Anything bigger is sort of bulky but hey!, it really depends on one's preferences and need for a good workout during the hunt.
I started the 6x45 with a LW50 20" HB custom porting (between mid length and rifle length) .750 Gas Block 1x9 Twist. A very good performer with match accuracy. Now I am going for the 4th 6x45 barrel.
It is very hard to make a bad 6x45 load. It is really forgiving.
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Post by GLSHOOTER on Dec 19, 2011 21:00:07 GMT -8
Powder choices in my 6X45;s have shown excellent results with the 748 and the bigger 87 grain bullets. Look at the HP boys and you will find that this also holds true in their guns. load of RL 15 might also be a good performer for the big boys too. I plan on finding out shortly. I am looking hard at the Berger 90's as I think the 0.411 BC with the length will be a god trade of. If my chamber can single load the long ones then I will try my hand at them as F-class is not exactly run and gun. Greg
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Win75
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Post by Win75 on Dec 20, 2011 3:49:11 GMT -8
Thanks for the replies. I was kind of leaning toward the 20" barrel so that is where I will probably go with this. I also think I will do the .750 barrel.
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Deleted
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Post by Deleted on Dec 20, 2011 4:00:53 GMT -8
Great choice, the best of both length and weight.
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Deleted
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Post by Deleted on Dec 20, 2011 8:25:14 GMT -8
You will love the 6x45 it's a great rd myself and my kids have killed everything from Deer and Hogs all the way down to coyotes and PDs with them. Great choice on setup
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Post by crippledeagle on Dec 27, 2011 16:07:05 GMT -8
I noticed talk of a faster twist (1/9) for the 6mmX45 but one is not listed. Are there custom twists available?
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Post by GLSHOOTER on Dec 27, 2011 17:20:45 GMT -8
I noticed talk of a faster twist (1/9) for the 6mmX45 but one is not listed. Are there custom twists available? The new ones are 1:9. Mine I get this week is 1:9. Call 'em direct and chat with Andy. Greg
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dr69er
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Protect the US Consitution & the American Way.
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Post by dr69er on Dec 29, 2011 19:31:27 GMT -8
Greg I'm glad those 1:9 twist barrels are ready for the 6X45 caliber.
Now, I'll have to save some coin for that new BHW in 6X45.
Ah yes, yet another BHW barrel ! I'll be just a little closer to broke that's all...
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Post by GLSHOOTER on Dec 29, 2011 20:44:32 GMT -8
Greg I'm glad those 1:9 twist barrels are ready for the 6X45 caliber. Now, I'll have to save some coin for that new BHW in 6X45. Ah yes, yet another BHW barrel ! I'll just a little closer to broke that's all... Broke is a state of mind. This web site makes me rich. Greg
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Post by 78maverick on Jan 5, 2012 19:30:47 GMT -8
I'm pleased with the move to the 1:9 twist - will better stabilize the longer bullets and you can still shoot the lighter ones fine. I'm considering a 6x45 for hunting - will probably go with a lighter profile in 20" (unless someone can convince me that a 24" is worth the extra length.)
John
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Post by GLSHOOTER on Jan 6, 2012 8:30:26 GMT -8
I'm pleased with the move to the 1:9 twist - will better stabilize the longer bullets and you can still shoot the lighter ones fine. I'm considering a 6x45 for hunting - will probably go with a lighter profile in 20" (unless someone can convince me that a 24" is worth the extra length.) John I guess it is a factor of what you want to do with it. If it is a coyote killer then the 20" is fine and dandy. Indeed a 20" will handle about anything from my past experience. That being the new 24" 6X45 I juts got and shot last weekend is giving me about 125-150 extra FPS over the same ammo in shot in my 20" gun. I love velocity and if the gun will hold the holes together I will use it. I am shooting several 24" bull barrel guns off bipods for PD's. The weight on them runs 10.8 (204) with ACE Skeleton and a bipod. The new 6X45 runs 9.8 with an A2 stock and NO bipod. The 6X45 was a custom turn from BHW as it is a bull weight under the tube with the rest from the gas block forward as a standard size. This cut some weight off and it balances very well with the big stuff between my hands. Both guns are fluted under the tube and the front end. I don't find the weight all that objectionable for humping across the PD slopes but as a mountain rifle it would suck!! Even my 358 Norma Mag on a 700 only weighs in at 8.2 and that is plenty to carry. Let s know what you get and I assure you the BHW will flat put those holes together for you. Greg
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Deleted
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Post by Deleted on Jan 6, 2012 15:00:38 GMT -8
That is pretty impressive for the little round. I am still waiting for the 24incher. Do you have more info? Load, bullet, spreads? Thanks.
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