Need help with 450 Bushmaster loads.

[Siringo]

Much easier!

When it comes to good info on this thread, Siringo is the "go to" guy!

Thanks Slash!

[BD1]

Thanks to both of you. The press/dowel option is something I can pull off.

[BD1]

Unfortunately, with the current primer shortage I'm limited to the stash of Remington 7 1/2s that I have on hand. We'll see what the chrony tells me about them if my lower ever shows up.

I slugged the bore and throat yesterday. .451 bore with just a scant .10 long .453 diameter throat. Looking down the tube from the breech you could mistake this for a 1911 barrel.

I think there's all kinds of cast bullet designs out there that will shoot in the .450B I probably have molds for 5 or 6 that will work. Quickload is telling me that a 300 grainer at 2,000 fps should be possible without going over the saami max psi. That would do anything I need to get done.
BD

[jagermaster]

Unfortunately, with the current primer shortage I'm limited to the stash of Remington 7 1/2s that I have on hand. We'll see what the chrony tells me about them if my lower ever shows up.

I slugged the bore and throat yesterday. .451 bore with just a scant .10 long .453 diameter throat. Looking down the tube from the breech you could mistake this for a 1911 barrel.

I think there's all kinds of cast bullet designs out there that will shoot in the .450B I probably have molds for 5 or 6 that will work. Quickload is telling me that a 300 grainer at 2,000 fps should be possible without going over the saami max psi. That would do anything I need to get done.
BD

Would you draw us a schematic of the Slug you did.
Thanks Parker

[GunNut]

Seeing's how small rifle primers are non exitent. I think it's time to resurrect the 284 to 450B case project. I have a good supply of large rifle primers and some are still available. I've Never done this before. but, I now have 200, 284 cases. Any tips or tricks in doing this? How will the larger primers effect the powder charges. I'm currently using 45grn. of LiL gun under a 230grn FMJ.
Thanks again for that load!

[Slash2]

Seeing's how small rifle primers are non exitent. I think it's time to resurrect the 284 to 450B case project. I have a good supply of large rifle primers and some are still available. I've Never done this before. but, I now have 200, 284 cases. Any tips or tricks in doing this? How will the larger primers effect the powder charges. I'm currently using 45grn. of LiL gun under a 230grn FMJ.
Thanks again for that load!

Starting from page 2 and going past page 6:

Here's some of it,

"I'm giving up on using trimmed down W284 cases, at least till someone smarter than me comes along and tells me exactly how to make them work.

But, here's what I've experienced so far:

The trimmed case wall at the mouth seems to be about .001 or so thicker, although I don't see it when I mic them out, but when seating the bullet with the 450 die, the alignment sleeve often scrapes a little brass off of the case and sticks when retracting it from the die.

The large rifle primers increase the pressure a lot. I stepped down 4 grs. of powder from my other loads (34 grs H110 from 38 grs.) and I still had a moderately flattened primer on my first round. So I tried my next .5 gr. step up and blew the primer out of the pocket!

Back home, load six 32 gr. rounds. Next day at the range (the range fees alone would cover buying factory rounds instead of reloading these things) I hand load one in the chamber and fire, primer looks fine, load four into the mag, failure to feed, drop the mag, with effort pull the partially closed bolt back and extract the stuck round. Insert mag with 3 rounds, failure to feed. Again struggle to extract the stuck round and say f**k it, I give up, it's not worth it."

[Siringo]

284 Cases

I'm going to throw in my two cents here -- based on all the work Slash did before, I avoided going this route. Mostly because I felt I would spend much more in special tools to do this -- than buying a few boxes of factory until brass was available. Also, since the neck is thicker -- the way to get proper neck thickness would be to inside ream them. I don't know if any tools are made yet.

Then another question that should be addressed -- does the neck on the newly prepared case need annealing? I would think that it would.

Assuming that this is all done and the cases are prepared to spec -- what is the internal capacity of the formed 284 case versus Hornady's 450 factory. IF the 284 case has less capacity, coupled with LR primers -- pressures can be expected to be higher.

[GunNut]

284/450B

The brass is really not the issue. I have about 10 boxes of factory ammo and the brass seams to last a long time. 6x so far. But, I'm running out of small rifle primers. I need to save them for my CAR 15 & pistol. 5.56. Just none to be had at any price. I have plenty of large rifle and can get more. I love shooting this beast! So, I have to figure this one out. Thanks for the tips! Maybe I'll rigg a sanding dowel on my case trimmer to sand down the inside of the new case, just a little. Thanks again!

[MudBug]

I'm going to throw in my two cents here -- based on all the work Slash did before, I avoided going this route. Mostly because I felt I would spend much more in special tools to do this -- than buying a few boxes of factory until brass was available. Also, since the neck is thicker -- the way to get proper neck thickness would be to inside ream them. I don't know if any tools are made yet.

Then another question that should be addressed -- does the neck on the newly prepared case need annealing? I would think that it would.

Assuming that this is all done and the cases are prepared to spec -- what is the internal capacity of the formed 284 case versus Hornady's 450 factory. IF the 284 case has less capacity, coupled with LR primers -- pressures can be expected to be higher.

Same here except that I bought some .284 brass, a 45 cal trimmer and .284 base holder for my old RCBS trimmer, and a cheap, mini cut-off saw for rough chopping the brass. Then I never tried it cuz it seemed like a loser.

BTW, it seems there are some new .452 hornady bullets out, a 200 grn FTX bullet.

Oh, and I'm working on the dedicated forum. I bought the domain name "450bush.com" (450b is taken, and 450bushmaster is owned by some company called Above Inc. A domain parking sevice. So either Bushmaster is sitting on it, or maybe is sitting on it to sell it)

Also I'm testing a few Wiki programs that I may be able to tie into a phpbb forum.

I'll let you guys know when it's up.

[BD1]

I can draw the throat cast from my rifle, but I have no idea how to post the drawing here. I have no scanner at home. I'm waiting on a 405 grain mold I bought from another boolit caster which will give me a slug long enough to slug the chamber end, throat and first 1/2" of bore in one slug. The stacked lead balls method is OK for diameters, but not very accurate for the length measurements as the balls don't stay together when they drop out. When I get a good slug I'll make a drawing which I could send to someone who knows how to post it here.
BD

[Slash2]

Wildcatter?

Has anyone heard form Wildcatter lately? He's been missing for quite awhile.

Hey Wildcatter! You out there? Anything new on the horizon. What's happening with the Kill Bullets? Is all well with you?

Or have you lost interest in us because nobody seems to be trying to develop Photon Torpedo's for the 450B!

[Wildcatter]

Has anyone heard form Wildcatter lately? He's been missing for quite awhile.

Hey Wildcatter! You out there? Anything new on the horizon. What's happening with the Kill Bullets? Is all well with you?

Or have you lost interest in us because nobody seems to be trying to develop Photon Torpedo's for the 450B!

Yep, I’m finally here again, the Prodigal Son is back. Holy Cow have I been busy and funny you should ask when you did. I’ve been reading youz guys stuff for about two hours tonight, trying to get caught up and I stand in awe of the work you all have been doing. I got a ton to tell ya..The Kill bullet is in the third generation, no one thought this thing would fly, but boy, it sure does! I had a crash course for the bullet, building it for an Executive of Cerberus (the owners of Chrysler, Bushmaster, Remington, DPMS, Marlin, and a bunch of other gun outfits), needing the proto-type bullet for an Alaskan Spring Grizzly Hunt.. Now for a little taste here, as things are not quite done yet, but rest assured, you will be the first to get the scoop and bullets to shoot, to boot..wink. OK, don’t think you can duplicate what I’m doing “YET”, don’t even try, this is all new thinking and covered by two Patents, and I am not revealing all the tricks of the trade, “YET” (you'll be the first to get it), but here goes, this will only be a teaser.. To date, a 200gr bullet going 3100fps+ (and speeds are safely going up) and apparently slapping the target 3x-5x harder than the 458win-mag!!!! I say apparently, because, the 458wm control gun is displacing 3-5x less material than the 450b-Kill Bullet does. I know this is subjective, but Holy Cow, you can't believe what I'm seeing, this is going to change everything, especially when the other calibers come on line. But for now, we have a dedicated 450b bullet that is going to kill like nothing has ever before. Again, I know these are subjective things to say, but you just wait… We plan on making a Last-Word movie to dispel all the Nay-Sayers, or nearly all, because it matters not what you do to document the truth, with 6000 rounds of Hypo-Kill, and two of the foremost renowned Forensic Pathologists on the Planet, and stress engineers out the wa-zoo, to do all the documentation, and to put their names and reputations on the line, there will always be the Nay-Sayers.

I just got back from a world wind trip to S. America, seems the Narco-Wars have heated things up so much that many-many countries want what we have (the 450b) and are developing, for their Civil Wars. This thing going on south of our boarder is being way-way underreported and is as hot as they come and it’s spilling over our border. I can’t say who or how many, but Bushy is doing a huge Landmark Business south of the Border, for the good guys. The Spec-Ops communities has their eyes, right smack on the use of our technologies and believe me, when I say our, I mean you guys, because you are advancing the cause of freedom, by the things you do and think about here. Keep up the good fight, more soon..

Safety First..t

[GunNut]

As of 4.21.09, Midway has 450B brass, $40 per 50.
BUT, No primers

[BD1]

It's interesting to see the new bullet from Hornady has two cannelures. Nice to know they're thinking of us.

As of this morning, Natchez also has no primers.

BD

[MudBug]

As of 4.21.09, Midway has 450B brass, $40 per 50.
BUT, No primers

If you want primers you have to make a habit of checking the online retailers every day. Grafs, Powder Valley, Wideners, etc. All of them get shipments, but they get bought out in a very short time.