Large SD on H322 loads?

Share information about reloading the 204 Ruger.
Copperhead
New Member
Posts: 2
Joined: Sat Jul 04, 2020 4:07 pm
.204 Ruger Guns: Tikka T3

Large SD on H322 loads?

Post by Copperhead »

Shooting T3 in 204.
Loading 32 VMax ,Hornady Brass, H322 25.8, 26 ,26.2grains, , CCI 450 primers.
Using RCBS charge master, Lee sizing die, Forster seating die.
Caldwell chrony
I m getting decent groups .75 but the SD is 75-80 with a range of 3770 to 3900 .
Any input as to experience or ideas as to why welcome.
User avatar
Rick in Oregon
Moderator
Posts: 4942
Joined: Thu Dec 01, 2005 4:20 pm
.204 Ruger Guns: Sako 75V, Cooper MTV, Kimber 84M, Cust M700 11 Twist
Location: High Desert of Central Oregon
Contact:

Re: Large SD on H322 loads?

Post by Rick in Oregon »

Copperhead wrote: Fri Nov 13, 2020 1:58 pmAny input as to experience or ideas as to why welcome.
From past experience, I believe that H322 is not ideally suited to the 204, being a bit on the fast side for consistent performance. I use it with good success in my 17M4, also in my 221FB on occasion. The smaller case is better suited to the burn rate of H322.

My best powders in the 204 have been RL-10X, Benchmark and H4895 with the 39/40gr bullets. I know powder is hard to come by right now, but try another more suitable powder in your rifle if possible. It appears you've got a decent barrel on her, you just need a better powder with the proper burn rate (slower) for the 204 case.

Let us know how it all shakes out when you've had a chance to try something different. :D
Semper Fortis
Rick in Oregon
NRA Life/OHA/VHA/VVA

Oregon, East of the Cascades - Where Common Sense Still Prevails

Image
Post Reply