|
|
Post by 45sixgun on Mar 6, 2012 8:19:17 GMT -5
Hello, newbie here. I've been working with my .45 Ruger NMBH Convertible. Accuracy was not what I get with my .44 so I started looking into it. I read that I needed to ream the throats, so I got a Manson reamer and reamed both cylinders. According to the paperwork this should have put the throats right at .452. I tried pushing some commercial cast bullets through but they wouldn't come close to going through even though the box said they were .452. Next I pushed some of the bullets through my Lee .452 sizing die. The bullets were on the larger side, but after sizing them they still wouldn't go through the throats. After reaming my accuracy seems a little improved, but I'm still getting tons of leading in the barrel. I just ordered a .451 sizing die, and I'm going to try that next. Has anyone had a similar experience? Any answers or suggestions? With my .44 Special the bullets go through the throats with a tiny bit of pressure. That gun is as accurate as I can shoot it. BTW, in case you can't tell, I'm new to handguns and reloading. Thanks.
|
|
|
|
Post by vashooter on Mar 8, 2012 13:29:14 GMT -5
Getting ready to get my throats reamed for my 45 acp in my Black Hawk this week end. Some people have told me that .451 sizing die will not work. Have you sluged your barrel ?
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Mar 8, 2012 21:29:38 GMT -5
Throw the calipers on your store bought bullets & measure them to be certain. Also, store bought bullets are often a bit too hard for optimal performance in some of the softer calibers. How hot are you loading them? As mentioned in the previous post, you also need to know your bore dimensions. Slugging the bore, and each cylinder throat will tell you where you stand. The nice thing is, you only need to do it once, unless you change something in the gun itself.
|
|
|
|
Post by 45sixgun on Mar 9, 2012 8:45:33 GMT -5
Thanks, guys. I need to do some slugging, for sure. I'm not sure my cheap calipers are accurate, but I'll see what they read on those bullets. I was just reading Veral Smith saying that he had to load hotter to eliminate leading. I'm shooting 9 grains of Unique in the Colt cartridges. Veral said he had to go up to 10 with Unique. I'll try moving up in that direction and seeing what happens.
|
|
|
|
Post by 2 Dogs on Apr 13, 2012 6:27:30 GMT -5
|
|
Snyd
.375 Atomic
The Last Frontier
Posts: 2,388
|
Post by Snyd on Apr 16, 2012 20:28:53 GMT -5
If you haven't slugged the bore you need to do that first. I bet it's .451. In which case you need to shoot .452 boolits which means your cylinder throats need to be .4525. If the throats are too small the boolit will get swaged down and be too small for you bore. Too large and you'll get gas cutting. Once you have these mechanics of the gun right then you can determine if your boolits are too hard or too soft for the velocity and play with other things for greater accuracy and to deal with leading. But, if these things are corrected you will see an improvement.
|
|
