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6x47 and 115's

V

vinny

Private
Minuteman
Sep 24, 2009
23
0
64
#1
Gentlemen I've been tooling around with 105's and 108 Bergers in an old 6x47 barrel and just had the rifle rebarrelled in same. I want to shoot 115's out of it but am hesitant to waist any barrel life because I'm under the impression that they don't perform to BR (1K) standards. I've shot the 105s and the 108s well, real well at 300 y during the load development stage with the old rifle so I'm confident they'll shoot and one of the shooters at my club (Williamsport) can shoot the hair off of a flies balls with his 6x47 and 105s. So I'm wondering if anyone of you have had any experience that they're willing to share regarding the 6x47 and the 115's. If not I'm going to test them anyway, who knows my barrel might like them!
Any feedback would be welcome.
vinny
 
#2
Re: 6x47 and 115's

I have only shot 105's out of mine. A lot of people on here prefer the 115's, but I like the velocity advantage I gain with the 105's versus the slight BC gain of the 115's.

I went that direction on the advise of Dave Kiff. I was ordering a reamer and he said he didn't think the 115's were all that great either.
 
#3
Re: 6x47 and 115's

Thanks for the reply. I shot 105's at 3325fps with 42.5 G of R17 and 108's at 2950 fps with 36.8 G of R15. I re-barreled since then and would like to shoot 115DTACS because I have a 6BR-DX to shoot the 105, 7, 8's. I plan on ladder testing the slower powders like 560, 4831SC, R19, R17, 4350 and igniting them with 450cci's I'm thinking that R15 and Varget might be a little fast.
vinny
 
#4
Re: 6x47 and 115's

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: vinny</div><div class="ubbcode-body">Gentlemen I've been tooling around with 105's and 108 Bergers in an old 6x47 barrel and just had the rifle rebarrelled in same. I want to shoot 115's out of it but am hesitant to waist any barrel life because I'm under the impression that they don't perform to BR (1K) standards. I've shot the 105s and the 108s well, real well at 300 y during the load development stage with the old rifle so I'm confident they'll shoot and one of the shooters at my club (Williamsport) can shoot the hair off of a flies balls with his 6x47 and 105s. So I'm wondering if anyone of you have had any experience that they're willing to share regarding the 6x47 and the 115's. If not I'm going to test them anyway, who knows my barrel might like them!
Any feedback would be welcome.
vinny </div></div>

Vinny,

The reamer I own for my 6x47L is throated best for 115's.

I've shot lots of sub half inch 5 shot groups and a few in the .2s".Recently I had a 3 shot group at 800Y that was measured 1.5" on a steel plate that I shoot.

Since my load drives 115's at 3100 fps I don't feel the 105's are at much of an advantage.

I did a test with Beregr 105 vld target a while back.At 3200 fps they started shooting poorly so I decided not to shoot the 105's and just stick with 115's.

Tubbs new closed point 115 DTACS are supposed to have a BC of .59.Can't wait to shoot those.

Steve
 
#5
Re: 6x47 and 115's

It sounds like in order to shoot the 115's effectively, it takes a bullet specific reamer. Am I right in assuming that the chamber has to have a longer throat so a "standard" tight neck reamer is for bullets no longer then say 108's?
vinny
 
#7
Re: 6x47 and 115's

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: vinny</div><div class="ubbcode-body">It sounds like in order to shoot the 115's effectively, it takes a bullet specific reamer. Am I right in assuming that the chamber has to have a longer throat so a "standard" tight neck reamer is for bullets no longer then say 108's?
vinny </div></div>

I prefer to have the bottom of the bullet out of the neck shoulder junction.So with 105's there's not much neck left to hold the bullet on mine.

You can have the freebore cut onto the reamer "ordered that way" for 105's or both 105's and 115's or just the 115's.It depends on how much of the bullet you want sticking down in the powder column taking up powder capacity.

Yes,it's optimal to pick the bullet you want to shoot and have the rifle throated for it.

Steve
 
#8
Re: 6x47 and 115's

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tribe</div><div class="ubbcode-body">Steve123.... what's your load/barrel length that's getting you 3100 with the 115's? </div></div>

Tribe,

26" Schneider polygonal rifling 7.5 twist.

39.2 grains R-17,CCI 450 primers,115 DTACS at 2.765 OAL.

Steve
 
#9
Re: 6x47 and 115's

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: steve123</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: vinny</div><div class="ubbcode-body">It sounds like in order to shoot the 115's effectively, it takes a bullet specific reamer. Am I right in assuming that the chamber has to have a longer throat so a "standard" tight neck reamer is for bullets no longer then say 108's?
vinny </div></div>

I prefer to have the bottom of the bullet out of the neck shoulder junction.So with 105's there's not much neck left to hold the bullet on mine.

You can have the freebore cut onto the reamer "ordered that way" for 105's or both 105's and 115's or just the 115's.It depends on how much of the bullet you want sticking down in the powder column taking up powder capacity.

Yes,it's optimal to pick the bullet you want to shoot and have the rifle throated for it.

Steve </div></div>

Thankyou
 
#10
Re: 6x47 and 115's

Vinny i shoot the 115's for the first 6 matches of this last season. While they never shoot terrible i had a tough time getting them smaller then 6" at 1k. Of course your gun may be a little different. My take on them is they are a great bullet for tactical shooting but when doing 1k br most everyone sticks to the 108 105 class cause they are easier to get those small groups that you are looking for.
 
#11
Re: 6x47 and 115's

Thanks Steve,

My sweet spot seems to be 39.3 H4350 - 2,990fps out of a 1:8 24" Bartlein... Do you think it's the R-17, or barrel length... or probably both, that gives you the boost?

Is it running hot, or easy on your hardware?
 
#12
Re: 6x47 and 115's

It's the Reloader 17!
grin.gif
 
#13
Re: 6x47 and 115's

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ranger1183</div><div class="ubbcode-body">It's the Reloader 17!
grin.gif

</div></div>

Dammit! I've got all of this H4350 to shoot up!
 
#16
Re: 6x47 and 115's

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: NotAGuru ⊕</div><div class="ubbcode-body">Use the 4350 then... it works great in mine but i went to varget works a little better. </div></div>

Varget with 115's?
 
#18
Re: 6x47 and 115's

I was under the impression that, relative to the case, heavy bullet-slow powder, lite bullet fast powder.
I'm glad to hear you shot 6's at 1K with the 115's. If I could consistently shoot single digits with 115's in my LG I'd be happy, besides I have 13# of Varget so if I can get it to shoot with the 115's that would also be great.
 
#20
Re: 6x47 and 115's

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: NotAGuru ⊕</div><div class="ubbcode-body">I could push as much as 38 without ruining my brass but it shot better right about 3050. I could push them to almost 3200 but it was starting to show bad signs with the brass. </div></div>

So let me get this right. Naturally I'll be starting around 34.3G
of Varget with the 115's in lands and work up in .3 increments. You say you realized 3050, was that with 38G or was 38 the top end at 3200?
 
#22
Re: 6x47 and 115's

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ranger1183</div><div class="ubbcode-body">It's the Reloader 17!
grin.gif

</div></div>

Yep on the R-17! and Yep for the barrel length too.

I could go way higher velocity if I wanted to but 3100fps is the upper node on some ladder testing I did with this gun.

Yes there is a little primer flow but my bolt has not been bushed.The bolt lift isn't even close to being sticky yet.

Steve
 
#24
Re: 6x47 and 115's

Tribe, be VERY careful with Varget!

In my opinion, for whatever that is worth, Varget is way to HOT. No B.S. on that one. I tried using Varget shooting DTAC's back when I was shooting 6XC and the results were not nearly as good as H4350. That is when I blew out a primer and broke a jewel trigger because of it.

If I were shooting the 6-6.5x47 Lapua, I would step up the performance by upgrading from H4350 to Reloader 17.

My $.02
 
#26
Re: 6x47 and 115's

I had no problems when using the 115 bergers. There has to be some differences in size and bearing surfaces that i could see causing some problems. Of course you want to be careful and start low when using it but it was dam accurate out of my gun. But using the 108's it works even better. yes 4350 should work better for the 115's. Im not yet sold on rl-17.
 
#27
Re: 6x47 and 115's

Steve I thought you sold that 6x47L?

I run H4350 in my 6x47L (27" barrel, AI Mag fed), a soft load of 35.5 gr behind some very nice Berger 108s. I built it to shoot Kurt's tactical matches and for the first time in a 600 yard F-Class match last weekend. Nice is all I can say.

JeffVN
 
#28
Re: 6x47 and 115's

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Jeffvn</div><div class="ubbcode-body">Steve I thought you sold that 6x47L?

I run H4350 in my 6x47L (27" barrel, AI Mag fed), a soft load of 35.5 gr behind some very nice Berger 108s. I built it to shoot Kurt's tactical matches and for the first time in a 600 yard F-Class match last weekend. Nice is all I can say.

JeffVN </div></div>

Nope,I still got it Jeff.I own two 6x47l's.

I have a single shot RFD benchrest/F-class rifle(still for sale) and a MAK tube gun.

Glad to hear yours is shooting so well!

Steve
 
#32
Re: 6x47 and 115's

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Tribe</div><div class="ubbcode-body">More worried about good strong dope!
whistle.gif
</div></div>

Well, I'm a big dope, does that count?
wink.gif
 
#33
Re: 6x47 and 115's

Guys, I've shot Varget and 107 Sierra's out of the shop rifle I put together and also H4350 primarily. It's a 1-8 twist barrel. Gun is a hammer with both loads. If I remember correctly the Varget load was 36.0. Hottest load I've run with H4350 was 40.0. Steve here at the shop shot this gun at the F-Class champs last year and was the high state shooter from Wisconsin and did extremely well overall.

On my prone gun it is a 7.5 twist barrel. According to my calc. the Berger's need at least a 7.77 twist at 3000fps. if I remember right. I am shooting the 115 Berger VLD's thru it. .010 off the lands. With a load of 39.0 of H4350 the gun agg's a flat .200 to .250. During the F-Class Champs. last year several people commented that the gun was shooting sub 1/3 moa at a 1000.

Later, Frank
Bartlein Barrels
 
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