6mm-06 Ackley

yodave

yodave

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I have a surplus of 30-06 and the like brass, I have a long action that has no barrel, I have a stock that needs a rifle bedded to it :eek:

Okay but seriously has anyone got some real world experience with this wildcat, google shows nothing more then the usual out dated info, so I would rather hear something from someone who has either shot one, or watched their neighbors shoot one, don't need to hear about what you read on the internet, because I have already travelled that route :cool:
 
barrel life is a major, down range balistics for 1000 yard shooting, how easy to tune loads for.
I would be thinking 8 twist for 115 and heavier bullets, might as well take advantage of technology that wasn't available a few years back right.
 
The Berger 105 hybrids are right up there with most 115-117 grain bullets. might crank out better speeds with less mass and near equal ballistics

There's also the 6-284...

I am not a fan of barrel burners, and this would be right up near the top.
 
I have a 6-284 as well. You need to keep inimd that these aren't designed for high volume sustained shooting. More of a specialist tool. I've had my Gibbs for at least 15 yeas (hard to recall). It has a RKS gain twist bbl. the 6-284 has a standard Rem 6mm twist. They still shoot moa and the barrels are holding up well. I don't use them on big gopher patches either though. For me they are more of a LR coyote gun. The Gibbs is pickier about loads and powders. Fwiw. - dan
 
I think this little bore eater will be more pain then it is worth. Big reason is these super heavy 6mm are all made with thin jackets and do not like going fast. You have the case capacity to push these towards 3300fps but I doubt they will survive past 3100fps.

So it becomes a point of rapidly dimishing returns.

For this case volume, I would lead you towards a 280 reg, improved or Gibbs. My variant was the 7 Mystic - similar to these other three except my headspace length was similar to the 7RM (280AI is shorter, Gibbs is longer).

either way, you get a wonderful case volume to push 180gr VLD's and Hybrids to around 3000fps and the LR ballistics is absolutely amazing. Bore life will be double what the 6-06 will provide. Tuning is dead simple as well (use 7RSAUM load data and work up).

There is a big reason any data for this wildcat is very old. So many new components including powder negate the practical use for this zapper.

But if you want to see what a 95gr SST or Barnes TTSX can do at over 3500fps, plenty of giggles await.

Jerry
 
I can break 3000 with the 6br with a 30 inch pipe so it seams there is little to gain other then maybe flattening out the tragectory a wee bit, I figured bullet construction would be a set back, thats why I asked for real world experience.

On a side note I was shooting 9.75 inches high at 100 yards to be hitting dead center at 600 yards with a 6mm XLR, thats pretty flat right there.

I was waiting for you to chime in Jerry :D as you know I tend not to be mainstream and like weird stuff, going old school with the triple duece build at the end of the year and possable a 30 XBR next year unless those plans get derailed between now and then.
 
NO worries. As you already have seen, we can make small cases run like big cases did decades back.

Little point until someone makes monolithic monsters.

222 is a gem.

30XBR would be very interesting indeed.

Jerry
 
Shooters found out a long time ago, you can't make a stubby bullet go fast enough with accuracy to keep up with a high BC bullet going at moderate speed.

Why bullet development has been so rapid in the 7mm to 338 cals. Plenty of gains to be had.

however, when any bullet needs a twist faster then 7, things tend to get really finicky.

The 7mm can likely get over 210gr. The 30cal approach 300grs. The 338 close to 400gr.

That is a whole lot more whoop A$$ to design and launch. Now those cigar sized magnums start to make a whole lot of sense.

I am expecting the first super bullet will be a 250 to 265gr 30cal ULD brute. There are already plenty of 8 twist barrel suppliers.

30-338LM or 300RUM for 2900fps out of a 28" barrel. SWAG would put the G7 BC in the 0.45 to 0.5 ballpark. Run them numbers at 1000 and 2000yds.

Jerry
 
Back in the '80's when Al Pedersen was still going strong I had a few 240 Gibbs rifles. When the throats cooked he would put on another and bore the old one to 30 cal or whatever. With a 30" barrel we could drive the 70 and 75 gr. bullets near 4000. This was using H870, WC867 and 50BMG powders. These killed everything they hit like a lightning strike. Accuracy and reliability were sometimes a problem. It's not a gopher patch chambering. We were using Nosler solid base and Hornady bullets. 12 and 14 twist. I still have 1 240 Gibbs left, and haven't fired it for years. May take it out this afternoon. Mark
 
Awhile back I got hit with the velocity bug. I settled on a 6-06Ai.
Although it doesn't get used much, it nearly achieved what I wanted. I was hoping to break 4000fps with a 75gr v-max.
I can't seem to find the exact results, but I believe it was with US869, and it was enough to see upwards of 3900.
Surprisingly enough it put 3 shots just under an inch at 100yds even with a 1:8 twist.
 
Yoteboy said:
Yodave
For interest sake, why the 6-06 and not the 6.5? Or do you have access to a reamer for the 6mm?
Click to expand...

because I can :D

Oh and because I have a 6.5-284 but I started thinking 120 grain 6mm bullets at warp speed could be useful :cool:
 
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