**6 Creedmoor**

Movistar

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Feb 20, 2017
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Anyone have any hard data (not bubba stories) about slowing down the speed of 6CM to preserve and extend accurate barrel life?
 

reubenski

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Anyone have any hard data (not bubba stories) about slowing down the speed of 6CM to preserve and extend accurate barrel life?
Well, this one time....me and the boys were set upon by a battalion of Viet cong.....I had my trusty 6 creed downloaded to 2750 and I was poppin grapes in beautiful pink mists....
 

Baddog 0302

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Sep 22, 2013
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Chamber & twist question.
Looking to get a new 6 CM bbl.My choice of chambers are the 6 CM. and the "match" 6 CM chamber. With a Max range of 600 Yds. I don't see the need to shoot anything heavier than the 108 ELD's. Also my choices are either a 26" with a 1-8 T or a24" with a 1-7.5 T
I don't thing there would be much difference between the 24 & 26 " bbl'a as far as MV goes. And the 1-8 T would probably do better with the Hornady and Nosler 105's. This will be for "steel banging" only
 

Matt_KJ

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May 27, 2019
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Chamber & twist question.
Looking to get a new 6 CM bbl.My choice of chambers are the 6 CM. and the "match" 6 CM chamber. With a Max range of 600 Yds. I don't see the need to shoot anything heavier than the 108 ELD's. Also my choices are either a 26" with a 1-8 T or a24" with a 1-7.5 T
I don't thing there would be much difference between the 24 & 26 " bbl'a as far as MV goes. And the 1-8 T would probably do better with the Hornady and Nosler 105's. This will be for "steel banging" only
The 6 Creed match chambers have less free bore than the standard chamber.

Hand loads or factory ammunition?

Barrel twist, unless you’re looking to run the heavies then the 1:7 or 1:7.5 is ideal if not 1:8 is fine.

Barrel length, You’ll loose anywhere from 25 to 70 FPS between the two, however, it could be more, and it could be less.

Just to bang steel? Take a pick, you’ll be happy with either.
 

fili.herrera

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i'm just getting into 6CM...have some 115 dtacs on order and will be spitting them through a Krieger 1/7.5. would anyone like to share data on powder...RL16 or H4831SC...I have both CCI BR4 and 450's and will be using lapua brass. TIA
 

Islander

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Nov 2, 2018
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Anyone have any hard data (not bubba stories) about slowing down the speed of 6CM to preserve and extend accurate barrel life?
I might have some after another 2,000 rds. Just started loading for a RPR in 6CM. Tested from 36.0 to 41.5 of H4350 and Hornady 105 match. Had the best groups at 37.6 with a velocity of 2890 so I figured I’d shoot it there and see how it goes. I’m seating .020 off the lands, so time will tell.
 
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Flightmurse

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Jul 30, 2018
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Alright, my 6 creed project is finally coming together. I need some loads to break in the barrel before I start load development. I have brass, nosler 105 cc’d, and h4350. I was thinking of just loading up 20 at 40.5 just for sight in and barrel break in, seated 20 thou off the lands. Any better ideas?
 

reubenski

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Alright, my 6 creed project is finally coming together. I need some loads to break in the barrel before I start load development. I have brass, nosler 105 cc’d, and h4350. I was thinking of just loading up 20 at 40.5 just for sight in and barrel break in, seated 20 thou off the lands. Any better ideas?
If you just want to break it in drop it to 39.5gr. You're going to get higher pressure and slower velocity on a new barrel. Once you get 50 to 80rds on it you can ladder it. I would also save the 4350 and just buy a lb of something cheap to break in with
 

Flightmurse

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Jul 30, 2018
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If you just want to break it in drop it to 39.5gr. You're going to get higher pressure and slower velocity on a new barrel. Once you get 50 to 80rds on it you can ladder it. I would also save the 4350 and just buy a lb of something cheap to break in with
Thank you for the advice. I have enough 4350 to get me through the barrel, and I can’t seem to find much of any other powders around unless I could use up some 4831sc in it.
 

Baddog 0302

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Sep 22, 2013
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The 6 Creed match chambers have less free bore than the standard chamber.

Hand loads or factory ammunition?

Barrel twist, unless you’re looking to run the heavies then the 1:7 or 1:7.5 is ideal if not 1:8 is fine.

Barrel length, You’ll loose anywhere from 25 to 70 FPS between the two, however, it could be more, and it could be less.

Just to bang steel? Take a pick, you’ll be happy with either.
I looked at reamer work sheets or what ever they are called pictures of the 6 CM & 6 CM Match, it looks like the match total ]throat & leade} are several "curly hairs" longer. I like to do a "break in"off the lands, then start with the bullet hitting the lands and then start backing off to find what works best.
Stumbled upon some NCC & D-TAC 115's at a estate sale, might see if some of the locals want the heavies, that way I can go with a 1-8 and stay with the 108 ELD's
Thank you
 

MilSpecOkie

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Mar 10, 2017
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I was genuinely curious, I’m not criticizing you, I’m trying to learn.

I’m running DTACs with a 160 free bore and I’m not in the case. I’m not 60 off, but will 60 off with a 220 free bore allow you to be mag fed?
 
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Niles Coyote

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Sorry, didn't mean to come off sounding harsh. IIRC, my oal is around 2.850-2.860... I'll have to double check that as it's been a year since I loaded for that barrel.
 

giumau1

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Sep 14, 2020
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Any joy with the Norma's (MRP/URP) anyone? According to Quickload MRP should be just as good as RL-26 behind Hybrids 105, 109 and Atips, here in EU H4350 is no more an option, if it ever was...
 

MilSpecOkie

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Any joy with the Norma's (MRP/URP) anyone? According to Quickload MRP should be just as good as RL-26 behind Hybrids 105, 109 and Atips, here in EU H4350 is no more an option, if it ever was...
Berger told me 36.0 to 40.0 for 109s and URP. They said it was from QL with a 26” barrel, loaded to 2.800 inches, but should be close. I have four pounds of URP to try. How is the temp stability? I don’t see URP around anymore and wonder if they dropped or replaced it?
 
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giumau1

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Sep 14, 2020
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Berger told me 36.0 to 40.0 for 109s and URP. They said it was from QL with a 26” barrel, but should be close. I have four pounds of URP to try. How is the temp stability? I don’t see URP around anymore and wonder if they dropped or replaced it?
Thanks. Stability is great (Tested 50-85 F) and speed is there too. Excellent results here with 6.5 cm and mid weight pills like 135 atips and bergers 130 Otm tactical. I am in Europe so supply is not an issue, but you have to buy at least 10 1# jars if you want it so trying to understand if it could be good for both calibers I reload
 
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craigos

craigos from Scout 2015
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Feb 11, 2017
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Hi All

Am running 41.15gr H4350 under a 115 DTAC in Alpha SRP brass. I got two boxes of Lapua SRP - how do the two cases compare? Anyone loaded up their Lapua 6CM load in a Alpha case, or vise versa? Verdict? Findings?
 

MilSpecOkie

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Mar 10, 2017
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Thanks. Stability is great (Tested 50-85 F) and speed is there too. Excellent results here with 6.5 cm and mid weight pills like 135 atips and bergers 130 Otm tactical. I am in Europe so supply is not an issue, but you have to buy at least 10 1# jars if you want it so trying to understand if it could be good for both calibers I reload
The info above is loaded to 2.800" and guesstimated speed is 2996 FPS with a 40.0 grain charge of URP at 96% fill capacity.
 
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