Good morning all,
thought I would take a moment to post changes I made and the results. The load I am now using is:
180 grain MG fmj
5.2 grains Bullseye
1.130 col
I have stopped using the lee budge buster and started using the lee factory crimp die. This last Friday the case gauges that I ordered finally came and I reloaded 250 rounds and ran each round thru the case gauge. I found that 16 rounds would not pass. I also found that if I ran the rejected rounds back thru the FCD. about half would then camber. This weekend I shot 2 matches. Over the course of the 2 days and about 225 rounds I had 2 fail to feed. and 3 fail to camber on load and make ready command (don't know what that's about but is not a big deal at this time). Over all a great improvement in the guns performance and was very happy. Thanks again for all the advice it worked out well.
enjoy the day
J.R.
P.S now I need to find another excuse to justify my poor scores
I had stayed out of this thread because I figured that greater minds than my own were prevailing.
BUT…
I'm still at a loss to the back and forth on the bulge buster and the factory crimp die. Neither product as far as I see is being used correctly here and no one seems to be fully pointing this out. I may end up having to swallow some of my words if I get this wrong, but this is what I see going wrong here so far:
The Lee Bulge Buster kit is made to work with the die body from the Carbide FCD. You take the guts out of the FCD and add the Bulge Buster kit. You then run all your suspect range pick up brass through the die. You have now removed any possible bulged cases and they should all be roughly uniform in diameter. (I am assuming you have already prepped the cases by first running them through some kind of cleaner like a tumbler) Now that they have been through the Bulge Buster, they still need to go through your sizing die. The carbide post sizing ring in the FCD is not the same diameter as the sizing die. The FCD is made so that with a standard size bullet that should match your bore, the carbide ring will only "kiss" the sides of the case as it does a final sizing of the loaded cartridge. My .401" cast bullets almost never do more than just kiss the case and hardly have any friction as they head in for the crimp. The trouble is that not all case walls are the same thickness. You will feel as the bullet is seated in the first place that there is just a slight extra amount of force required to seat the bullet into that case. Or at least you would if you were using either a single stage press or a turret that loads one cartridge at a time. This feeling of the case in action by the press is negated with you go to a progressive press since there are so many actions going on at the same time. I guess if you are really paying super attention and your nerves are in peak condition then you might still catch it, but it's much more difficult. So if I'm using my own cast and sized lead bullets and they are sized at .401" then I know I can still use the FCD and the post sizing carbide ring will only swage the bullet down if I have a case with too thick of a wall. So what is the diameter on the Montana Gold bullets??? And keep in mind that if you want to use range trash pick up brass then these are the kinds of issues you will have to put up with since this is very much a "can't have your cake and eat it too" type of deal. If the cases aren't consistent, then you are starting with inconsistency and can only end up with inconsistency. To achieve the peak level of reloading, you must fight any and all chances of inconsistency if you are demanding loads that are better than factory. If you want the FCD to just swage the bullet down to let the case fit the chamber, that's fine and it should feed in, but don't expect that bullet to not lead the barrel and have poor accuracy.
Last, I don't know what the bullet profile is that is in use here. My Lee mold is casting a SWC that is really more of a truncated cone shape bullet. If my Sigma can gobble them up with no issue then I don't see why a M&P would have issue. So another possible fix to this issue could be changing to a different bullet nose profile. Even if it is a round nose, there may be too much in the nose dragging on the feed ramp and bogging the cartridge down too much as to goes to feed from the magazine.
OK, that last part was supposed to be last, but this one is only conjecture on my part. I'm still trying to figure out is a light tumble lube in some thinned alox helps to in effect lube the bullet as it is feeding up the ramp heading to the chamber. I can't swear to that one since I don't have any issue with any of my guns feeding any of my cast bullets. So I can't honestly say that since all my cast bullets are tumble lubed even if they are run through my Lyman 450 first… That's too much of an assumption. But it's a darn good assumption. Maybe try a small bottle of LLA and tumble these Montana Gold bullets and see if that helps any. Just don't overdo it with the alox. You want a very thin film once it's dry.
If this is all bunk, then someone feel free to debunk me...