280 Ackley Question

[L.Sherm]

Guess you have never seen a wheel cylinder hone.
Time for a trip to NAPA.

I've used and seen plenty, just never had a use for one that small.

 

[BadgeNJ]

I will try giving Larry Racine a call thank you for your help!!

 

[jarnold37]

Go on youtube and type in Area 419 barrel chambering. No fat chamber

 

[nksmfamjp]

You can't just hone out a FL die there hardened.

Agree, but since Forster offers it as a service for like $10, I'm guessing it is not rocket science!

 

[L.Sherm]

Agree, but since Forster offers it as a service for like $10, I'm guessing it is not rocket science!

Thats for necks and I bet they do it before they harden the die

 

[L.Sherm]

If the O.P wants to do it go for it.

 

[GatorTrapper]

Get a 1/2" hone from these folks and RTFI.

https://www.mscdirect.com/browse/tn/?searchterm=Brush+Research+Mfg.+1%2F2%22+Bore+Diam%2C+320+Grit%2C+Silicon+Carbide+Flexible+Hone&hdrsrh=true#navid=4288244927&searchterm=Brush+Research+Mfg.+1%2F2%22+Bore+Diam%2C+320+Grit%2C+Silicon+Carbide+Flexible+Hone&lh=n

 

[Muddyboots]

Get lots of stuff from MSC, usually get pretty fast.

 

[Deleted member 109523]

I also used Redding comp dies on my son's 280a.i. with similar results.

The relationship between chamber and die is excessive and you end up sizing too much. It likely over works the brass, leading to a lot of trimming after a few firings. Then the shoulder moves into the neck and you end up creating a donut.

On my son's rifle, the donut arrived on some 2x fired and all on 3rd firing. I used mandrels to force the donut to the outside and turned necks + a bit more in the shoulder. I used pin gauges and tubing mic to verify all was well. It took a lot of time and was a PITA.

I knew it would happen again down the line, so I shopped for new brass and bought a sizer from Forester and Hornady. Returned the Forester and kept the Hornady, as it sized the shoulder only .002" and .0025" above the web. Turned the necks and everything worked out fine, some are on 5th firing and very little trim has been needed & no donuts.

Just my experience!

My exact 280AI experience with the Redding die being way to tight and the Hornady being perfect. I put so much pressure on the case that on the second firing, with a .002 bump, 3 out of five cracked in the center of the case. Bought a hornady die. A now it's the most accurate gun I have

 

[L.Sherm]

Redding dies are made for both versions version of the 280AI there is 2 version has anybody who's had problems die to chamber made sure they have the Nosler or P.O. Ackley version and are matching dies accordingly

 

[L.Sherm]

Actually Redding makes both I just checked mine. The 40 deg ones are the older P.O Ackley version

 

[GatorTrapper]

But the base of the cartridges are the same.

 

[MagMan]

My Redding dies work well.

 

[L.Sherm]

The Nosler version is .015 shorter at the shoulder so if you have the P.O Ackley version dies and have to run the shorter Nosler in the Die farther to bump shoulder you are gonna squeeze the case more because of the taper