lancaster
(.470 member)
05/08/23 06:40 AM
Re: Dickson 250 Rook

Quote:

Happy to report I was able to load up 5 different loads and get to the range yesterday.

I was using lead round nose 25 ACP bullets, cast by Bear Creek Supply. Loads with 1.9grains of Unique were accurate and showed no pressure signs. Hotter loads with 2.7gr Unique showed issues with cratered primers and sticky opening, so I'll be tearing those down to re-do with lighter charges (including trying 1.7gr Unique).

I did not try shooting any of the jacketed round nose 25 ACP projectiles from PPU, as I had those over 2.7gr Unique and I'd already seen issues with that much powder and LRN bullets.

Remington 6/12 primers seemed to give better accuracy than regular small rifle primers. Will need a bigger sample to confirm.

No difference I could see between RMC turned brass cases and reformed cases made from 22 Hornet brass.




you .250 rock guys maybe not notice this, Händler& Natermann in germany is making 6,35 mm airgun slugs
for some time now called "heavy slug". weight of this bullets goes from 38 to 46 grains, they differ in length but be otherwise the same.



https://www.hn-sport.de/de/air-gun-hunting

hollow point with flat base, pure lead, diameter .251
25 ACP full metall have .250

the heavy slugs cost 8-9 euro for 100 here. they work fine when reload them into 25 ACP.
of course, the 46 grains is the best for the pistol rounds. the bullets are not coated but lee liquid alox will do it - if you can get this bullets in your country.



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