6 CREEDMORE VS. 6 SLR

[searcher]

Am thinking over a new project and want to stick to 6mm ONLY on this - due to huge accumulation of 6mm bullets. I find the 6 SLR interesting as well as the 6 Creedmore. While there are a number of attributes of each, here are the questions I am still pondering:

1) While each gun is different - any concensus on which chambering may be "inherently" more accurate?
2) Which may be likely to provide better barrel life given use of same bulets and powder?
3)And lastly, a friend says I should also be looking at a 6 Remington Ackley - as has a long neck as the SLR, similar powder capacity, etc. Thoughts on this?

I want to be able to SAFELY push 115 DTAC'[s @3,000 and 105'S to 3,200+ and want the chambering that could do it the best with accuracy 1st and barrel life second but get fair choice of barrel life in the process. Any comments would be appreciated. Thanks

 

[Dgd6mm]

I can not wait to see the answers to these questions.

 

[mac37]

SLR sounds better. I'd go with that.

 

[1shot]

I have had a 6SLR in the stables of my gun vault ever since the cartridge hit the market and was called by a different name. This round does everything you are asking for easily. Although I have never shot a 6 Creedmore or the 6 CM I would expect similar results for all three. As food for thought, I am currently shooting a 243 Ackley Improved and can shoot the velocities you mentioned with a mild to moderate load. If I load it to the top node, it will shoot inside all of the above, but the brass sure takes a pounding.
I hope this is of some help,
Lloyd

 

[searcher]

1st shot: What was the 6 SLR known as when you got it? Do you favor your Ackley over the 6 SLR?

 

[1shot]

Searcher:
The 6SLR was previously named 6Super X.In terms of raw powder, the 243 AI can't be beat, but the tuning nodes are very wide with the 6SLR.
Lloyd

 

[waterfwlr]

Take the 6 rem ackley out if you are concerned about barrel life. The 6 slr will get you the velocity you are looking for with very good accuracy.

 

[searcher]

It would be great to get speed, accuracy and barrel life in a "magical package". As we know in real life, everything is a tradeoff. I will take a look at the 6 Remington Ackley - another round I have had no practical experience with. Sounds as though it has moderate barrel life and excellent accuracy - and can push the bullets as described. Of the options, accuracy is my main goal - barrel life second. For clarity - I just didn't want one of these if it was tough on barrels after, say, under 1,500-1,800 rounds. I'd like to get 2,500 or more and was hoping I might be able to that by at least using the 105's if needed.. I do way too much tuning and dinking. I sure appreciate your input guys!

 

[searcher]

Seems I missed the most important word above - in taking the 6 Remington "OUT". Really tough on barrels huh?

 

[waterfwlr]

Yes, it's a big overbore case. It's right up there with my 6-284.

 

[Raptor]

Heard good things about the Creedmor but never shot one. I have the SLR and its a hammer!! I shoot the 107s in mine and I am at 2900rds through the barrel. It started life as a 6XC but re chambered it to the 6SLR and never looked back. I use H1000 in mine.

 

[flatlander]

I think there's two main trains of thought when it comes to 6mm cartridges for LR shooting. One goes with smaller, more efficient cases like the Dasher & up to the 6x47 Lapua. No way to get the kind of velocity the OP mentioned without using N550 or RL17 in the 6x47 - even then, bbl life will suffer, and you're gonna be wearing out expensive brass fairly fast.

The other route uses 243 Win brass in one form or another (eg - SLR, AI), and is focused on taking advantage of the extra case capacity to allow the use of slow powders like N165 & H1000, which also have lower flame temps than the 4350s. From what I've heard from guys whose numbers I trust, you won't be seeing velocities as high as you mentioned here either. Probably going to have to use 4350 to get that kind of velocity, and the penalty for that will be considerably shorter bbl life, mostly because 4350's flame temperature is significantly higher than that of N165 or H1000.

If your intention is to be able to feed rounds from a magazine, the COAL will favor the use of a long action, espeically with heavies seated out in the 6mm Rem or AI or Crusader.

 

[dmoran]

Velocity from a 6(243) comes with a price....
Accuracy can be had from about any design, but raw best accuracy comes from efficiency - IMO
I ran Improved 243 and the like spin offs for years. Best accuracy did not come at the higher velocities, it came in the 3000-fps range and below. That's why I went to a 6Dasher in 2004 and have never looked back....

My 2-cents
Donovan Moran

 

[searcher]

This is the kind of feedback I was hoping to get you guys! I was using velocities I took from the 6SLR "website", as the numbers are posted in quite a "factual way", yet little mention of brass life, barrel wear, etc.

Flatlander: I DO appreciate getting me straight on what I should expect on the velocities and barrel life. These will be shot from my Model B BAT, single shot. Do you recall what might have been more realistic velocities without using H4350? Thanks

 

[searcher]

Dmoran; I appreciate what you are saying as I have been shooting 6 norma long time and thought about doing another Dasher as I have lots of virgin brass and 6mm bullets. I also have lots of .243 brass. My plan was to evaluate what folks had to say about the other .243's and if one stood out - I'd consider it instead of the Dasher - or maybe chamber one for my F-Class rifle for those windy days. I am stubborn to move away from something that has worked well for me - but I also love the idea of the faster velocities. I LOVE the BR's also. Thanks

 

[Raptor]

Dmoran is right. You won't get the good barrel life or brass life pushing the 107s or the 115s up over 3000fps. Mine likes to be right around 3000fps for accuracy and good brass life. When I tried pushing mine harder I started loosing primer pockets in my brass after a couple of reloads. There are no free lunches. But if you want to push the 115s to 3000fps you need the bigger case for any type of barrel and brass life. If you don't care about either then pick one and "Hot Rod" away!!!

 

[Dgd6mm]

Searcher, are you getting closer to making a choice yet? If I was choosing from one of these it would be the 6SLR. The reason being, I believe it will do what you are asking. I have followed this cartridge since it's beginning. The 6Creed is good, but I believe barrel life will suffer if you try to run it up there where you can run the 6SLR with slower burning powder with 105-115 grain bullets.

 

[searcher]

Kind of between the 6SLR and the 6 dasher now. If the 6SLR (and other .243 ackley variants) shoot best at the reduced velocities, the difference in wind drift is greatly reduced between the two, down to around 4" @600 using the DTACS. I believe that between the two, the Dasher would get the nod for accuracy. With reduced powder useage and my having many 105's and brass, the Dasher is looking good again. Still looking at that 6slr for F-Class though. Would like some projections on real barrel life, assuming not hot-rodding. Interestingly, I was on a competitive 'sniper" blog and it had the year-by-year results for cartridge users and their standings for each of the past couple of years. That is a popular sport for 6mm Ackleys, 6.5,s, etc. The 6SLRs are used there too and while the minority, the Dasher users won the most. Of course, shooter skill level is not a factor in those stats and could sway reality one way or the other. It is quite interesting to look at the charts and think you know what will work best on paper - only to find it doesn't always work that way. I appreciate the input from all and am getting closer to getting this figured out.

 

[Dgd6mm]

Searcher, i'm starting to see a little clearer now. The Dasher would be my choice for a singleshot rifle for target shooting. Had you put the Dasher in the threads title you would have had alot more input, this i'm sure of. A few months back I was shooting a 600 yard f/class shoot. When we started the second end it was rationing fairly good and the winds were swirling. The fellow next to me shot a 200 14x with a Dasher and 105 Hybrids. I shot 195 13x with my .223 with 75 gr. Amax's. I couldn't resist posting my score, just tickled me that this .223 shoots that good. Sorry about getting off the topic. I own 3 barrels chambered in 6mm competition match, I have real world info on them, just like joe hendricks which can be trusted. With that being said the Dasher fits your needs the best.

 

[johara1]

Kind of between the 6SLR and the 6 dasher now. If the 6SLR (and other .243 ackley variants) shoot best at the reduced velocities, the difference in wind drift is greatly reduced between the two, down to around 4" @600 using the DTACS. I believe that between the two, the Dasher would get the nod for accuracy. With reduced powder useage and my having many 105's and brass, the Dasher is looking good again. Still looking at that 6slr for F-Class though. Would like some projections on real barrel life, assuming not hot-rodding. Interestingly, I was on a competitive 'sniper" blog and it had the year-by-year results for cartridge users and their standings for each of the past couple of years. That is a popular sport for 6mm Ackleys, 6.5,s, etc. The 6SLRs are used there too and while the minority, the Dasher users won the most. Of course, shooter skill level is not a factor in those stats and could sway reality one way or the other. It is quite interesting to look at the charts and think you know what will work best on paper - only to find it doesn't always work that way. I appreciate the input from all and am getting closer to getting this figured out.

I had a Super X and i thought it would be the answer to the wind over the Dasher but i found that all the speed was only a 100 fps over the Dasher and the accuracy wasn't there.The best groups were in the mid 1's to the low 2's and a gain of a 100FPS. till tight bolt over a sub .1 Dasher. Best accuracy out of the Super X was right at the speed of the Dasher but a lot more powder……. jim