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Posted: 2/16/2015 3:33:32 PM EDT
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I just ordered sample packs of the 147 gr RN 9mm and 200 gr RNFP 10mm/40 bullets, and I have a couple questions for those of you who have more experience using them.
1. Will these be OK to shoot through a suppressor? I don't see why not, but I figured I would ask. If they don't foul the barrel at all (provided they are loaded properly) I don't see why they would cause any issues with the suppressor either. 2. Has anyone shot any of these through a 10mm? How do they handle the higher velocity? |
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I have used a bunch of them, primarily the two caliber and weights that you have ordered.
1. I have shot a few magazines through my Gemtech Multimount and removed the LID device to inspect it. I couldn't find any hint of the blue coating. It's confusing because you'll get blue residue on your hands while handling them during loading but almost none actually in the barrel (or none that I could see in the suppressor). If you shoot steel targets, you'll see the coating is still attached the whatever is left of the bullet after it strikes the plate. 2. I have only loaded the 200gr in .40S&W so far. I do load 10mm but haven't gotten around to loading them in it yet. I have zero doubts that they will handle the velocity just fine. There are people loading them (and other coated bullets) for IPSC open guns well over the velocity you'll see out of the 10mm without a problem. |
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I've gotten into shooting powder coated bullets. I imagine shooting Blue Bullets are close to it.
Just like cast bullets, you need to make sure you aren't shaving the bullet while loading it into the case, you need to make sure the bullet is sized correctly to the bore (us powder coaters are finding that the same rules generally apply as cast, so you want the bullet to be slightly bigger than the bore), and you need to see if your leade actually has a throat. Also, if you use a Lee factory crimp die, you need to be absolutely sure the carbide ring that isn't swagging down the bullet size. If it was me, I'd try shooting 100+ rounds with these bullets before running the suppressor just to make sure you have everything set up right. Leading about 1" in means your throat is too sharp and is shaving the bullet to fit it to the bore. Leading towards the muzzle end means the coating is giving out (either reduce the velocity or change bullets). Leading or coating break down can also be cause by an overly small bullet (I could write a book about this after I finally discovered that my problem was the sizer ring in my factory crimp die). Chances are that you won't have any problem with these bullets. ETA: I haven't shot a coated bullet in .40 or 10mm but I have shot them in 9mm with loads which would have nearly the same pressures and velocities of the 10mm. I didn't have any problems with it. Just slowly work up your load, fire in quantity, and check for leading before upping the powder charge. |
| Another question - I load my 147 grain 9mm (Rainier) fairly long, around 1.150". Most of the loads I see people loading up with Blue Bullets are quite a bit shorter. Is there any reason for that? Since the cases aren't crimped, does there need to be more bullet in the case to hold them securely or something? |
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That has more to go with the gun it's going in than the bullet.
I keep them short to assure good function and feeding. I had trouble when I first started loading with rounds binding up in my magazines (IIRC they were around 1.140) so I have always tried to keep them shorter since then. |
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