25 ACP Dillon Shell Plate
elk hunter,
I'd appreciate any thing you might be able to provide on this item.
I won't be back in the shop until next fall so speed is not important.
I'm going to reverse engineer a couple of other conversion units I have and see if I can break the code on them.(Will have CMM available in fall as well.)
Due to the single die holder the radius of certain points will remain constant, which may have been the problem with the 25 round as it is so small in diameter. Will have to review the expander/powder measure die as well. But that's why they call it learning I guess.[smilie=1:
Thanks for letting me know that they did make it, albeit for a very short period of time.
Let me get the basic design together and then I'll possibly be better able to ask pertinent questions.
Thanks.
Dave
An interesting little artical about loading the 25 ACP
Hi, newbe here, I just read an interesting artical about loading the 25 acp and some of the problems it can present, I thought you might be interested, If you havent already read it, February's Guns&Ammo page 20
25ACP problems with Reloading.
Dillon 550? not mine.
I use an RCBS "RC" Press with a Longer Handle to both Reload .25ACP and to Reform 5.7x28mm or .22 Hornet cases into Lengthened .25ACP/.25 Stevens parent cases.
The Main Problem I found with the .25ACP is that Development seems to have Stopped with the Cartridge with the use in short Barrel "Pocket Pistols". I have only found an early (About WW1) mention of any commercial attempts to market a Rifle in this Caliber.
John Browning designed it as an easier Feeding Cartridge than the the .22LR of the same era (1904-1908) with equivalent Ballistic performance. The .22LR has improved greatly since, but not the .25ACP. It is even Tested only in a 6" barrel! The .22LR Is tested using a 24" barrel.
Now I KNOW the case will Perform to higher Pressure loading in a SUITABLE Firearm (Don't try it in a typical Blow-Back Action Pistol) as I have fired successfully several rounds of .25ACP loaded with 3.0 to 3.1 Grains of BE-86 and a 63 grain Lead FP bullet out of a converted Ruger 'Single Eight' Revolver.
This is a compressed Load of Propellant that has a somewhat slower Burn Rate than the Typical Bullseye charges recommended.
My Revolver also has a 10-5/8" barrel on it, over 5 times the length of the typical 'Pocket Pistol" ones.
Factory .25ACP fired in the same revolver do feel 'weak' by comparison, naturally.
Anyway, my main problem reloading .25ACP is ACCURATE measurement of the Small Propellant charges (Bullseye = 1.3 to 1.4 Grains) even with a Balance Beam Scale; as its resolution is only 0.1 grain as Marked.
Doing Load Development trying to hold 0.01 grain accuracy repeatably is a problem.
At least in the Lengthened cases the total charge weight gets up to where 0.1 grain accuracy is 'good enough'.
Best Regards,
Chev. William