30-30 Ackley Imp.

[DeanMk]

That's not at all what I've found.
When Bob Jourdan researched Ackley's work he found that Ackley judged the 30-30WCF to be the 5th best round for improvement.
Using 150grn bullets, he went from 2390fps on the standard, to 2700fps on the improved version.
That's a 12.9% improvement, and would be considered significant by any standard.
That puts the .30-30 into .300 Savage (Hornady SST) territory.

I'd sure do it if I had the gun and the coin to play.

...but what did it do for accuracy?
RVTECH makes a good point.
Speed, while very cool, is not an end all.
If it causes the accuracy to go away, how beneficial is the increased speed?
Sure a .17 Remington with a hot handload will win a drag race with just about any other commercially available cartridge currently in production, but if the 5 shot 100 yard group is 12", isn't all you're doing is shooting out your barrel faster?
If it were me, I'd look more into changing the bullet in the .30-30 and seeing if that doesn't improve downrange energy and accuracy (not to mention increasing the effective range of the cartridge)....like maybe 150 gr. Sierra Gamekings?


Dean

 

[Jamie6.5]

If/when you read Ackley's writings, you find he was not about increasing pressure. His work expanding case capacities was about just making/allowing the cartridge case hold more powder.
Not to increase pressures.
When properly done, an Ackley'd version of the original cartridge provides longer case life by removing taper, which causes/allows stretching during the resizing process, provide greater capacity to improve velocities, and may even result in a cleaner burning cartridge, by concentrating the burn beneath the neck.

Properly done, a 30-30 Ackley will not produce any "hot" loads. AT least not marginally "hotter" than a normal 30-30/.30WCF.