Welcome to the addiction! I'll wager that will not be your one and only PD shoot. :D I have wanted to do this for years and even built rifles and ammo but never took the initiative to find a place or guide. Then a friend invited me and yes i will definitely go again. I have bird dogs and plan to go...

Guide. $310/day including staying in there family farm house. SE Colorado.

Mine is also a Cooper. My last name is Mashburn so I just had to have one... I got it in 2007 and the data available then was pretty slim. I have not tried CFE or RL powders yet. When I first started doing load development I got better groups with the 50gr bullets. I do like the idea of lighter and ...

Went on my first prairie dog hunt and it was fun! I shot about 600 rounds in three days - 6 hours a day. My 6x47 Lapua on a Barnard action with Lilja barrel with 70gr NBT at 3450 was very accurate and had dramatic impacts! I also shot a 223 and a 204 in ARs. The guy I went with uses a 243 and two 22...

Obviously, work up to these loads. This is what works in MY rifle. Don't use 218 bee brass where I call for 25-20 brass... I had the best results fireforming with 25-20 WCF RP brass as described in my previous post. With 25-20 brass I use 12.7gr of IMR 4227, WSR, and a sierra 50gr bullet (1340); oal...

I have the same rifle and a lot of data and fire forming experience - btw not all is good experience... First Google is your friend. I found most everything by searching. I do have P.O. Ackleys book which gives some data and a magazine article on the round. I have used 25-20 Winchester brass (Winche...

Maybe 100 pcs. of Norma brass. I will probably not shoot it mostly because I don’t want a piece of brass stuck in the chamber when the head comes of one and the prairie dogs are laughing at me!

they are replacing the barrel. They had an oversized reamer and mine is the third one they have found.
So with 0.010" stretch @0.25" from the head, should I reload this brass?
Any speculation on how long it will last and where it will fail?

I had an issue with sizing my 204 Ruger brass (actually shaved some metal off the case) so I sent the die and two fired cases to Forster. They called and said they polished the feed on the die but my brass was 6 thousands over size! They stated the rifle may not be safe like this. I plan to call the...

I can't really address overall popularity, but I can say I did a lot of research for a 20 caliber and when it came to readily available Ar barrel, ammo, and brass without a forming hassle, the 204 won easily. I bought a box of ammo at my local gun shop and he said that was the first box he sold! (He...