The 204 cartridge was designed to be long throated by Hornady and many manufacturers reamers have taken this to extreme. My brother has a Cooper 204 and its throat (2.42) is longer than my Ruger #1 in .204. I never would have thought that another rifle manufacturer would have a longer throat than a Ruger rifle.
With your CZ-527 having a short action scaled to length for the .223 and .204 you can find the seating depth that provides you the best accuracy which means you could have a single shot rifle or seat the bullets to magazine length.
Hense why I have a single shot rifle (ruger #1) in .204, it does not matter.
In the 4 rifles in my group we all shoot the 40 gr. Hornady V-max using Reloader 10-X with the bullet almost touching
the lands. Powder charges range from 24.8 to 25.2 and accuracy is 1/2 inch or better. I have found the 40 gr. V-max needs to be pushed to Max velocity and seated very close to the lands to off-set the 1/ 12 twist Vs. bearing surface of the bullet and it has worked well.
The Savage rifles seem to have the "normal" throat length
but their box magazines have ample room. I can't comment on the Remington rifles in .204. Ruger throats fall in the middle and Cooper and CZ are on the LOONNG side of throat length.
This throat length vs. magazine box length is a worse situation in the 270WSM/300WSM calibers if your box magazine is less than 3.1 inches.
IDBOB and his CZ-527 in .204 needs to "jump" in of this
discussion.
Hog
