Ruger Forum

mudcreek · October 11th, 2012, 01:12 PM

hadn't thought about the crimp. Planning to load some H110 for the carbines (I found another one). The 4227 load is just the generic load for my blackhawks, and I don't put a heavy crimp in them. The little guns like it fine, but the unburned powder is an issue.
I will try recrimping a dozen or so, just to see.

TMan51 · October 13th, 2012, 04:34 AM

Quote:

Originally Posted by mudcreek

I am loading IMR 4227, 23 gr behind a 240 gr XTP. I am using large pistol primers, CCI. Will a hotter primer, say a large magnum pistol primer help fire up the powder?

I think you'll find that there are few perfect powder/primer combinations. Unburned powder is usually a sign that you're not getting either good ignition, or you haven't hit the optimal working pressure for the propellent to burn completely. Compressed loads with some combinations leave lots of junk in the tube, and often even on the bench. Crimp/uniform crimp can make a surprising amount of difference. Look closely at the factory stuff, it's thoroughly crimped, and it usually shoots pretty good.

W296/H110 is a very good choice in the straight cased magnums, but you need to load 'em pretty hot to get decent accuracy, with minimal "unburned" powder residue. The unburned thing is actually rare, and just ash. If you think it's unburned put a match to the kernels, unburned is pretty obvious.

Try a magnum primer though, but back the load down first. 4227 is really just as good as the ball powders, it just meters differently. Accuracy with any powder is a matter of testing it out, and some bullets, for whatever reason, just don't shoot well in some guns.

Bodthoutica · October 14th, 2012, 07:33 PM

Mudcreek, let us know how the heavier crimp and or mag pp works with the 4227...

mudcreek · October 15th, 2012, 04:01 AM

will do

mudcreek · October 18th, 2012, 05:33 PM

Recrimping the 4227 loads worked out well, much less "stuff" in the action. Loaded some H110, 21, 22, 23 gr with magnum primers. Too hot. 23 Gr all over the paper at 50 yds with both guns. Tried the load in my SBH, primers flattened. Kind of hard to tell about that with a gas operating system, I think, because the primers looked fine coming out of the carbine. Finally settled on 22 gr of 110 with regular large pistol primers, and got a 2 inch group at 100 yds. The 23 gr 4227 shoots to the same point of aim as the 110, so with a good crimp I actually have two powders which perform in those two guns.

Salmoneye · October 19th, 2012, 04:46 AM

Quote:

Originally Posted by mudcreek

Recrimping the 4227 loads worked out well, much less "stuff" in the action. Loaded some H110, 21, 22, 23 gr with magnum primers. Too hot. 23 Gr all over the paper at 50 yds with both guns. Tried the load in my SBH, primers flattened. Kind of hard to tell about that with a gas operating system, I think, because the primers looked fine coming out of the carbine. Finally settled on 22 gr of 110 with regular large pistol primers, and got a 2 inch group at 100 yds. The 23 gr 4227 shoots to the same point of aim as the 110, so with a good crimp I actually have two powders which perform in those two guns.

Good info...Thanks for the update, and congrats on a couple of good shooting loads...