450 Bushmaster Load Data?

j8064 · Jun 24, 2017

Adding a Ruger American Ranch in 450 BM to my reloading bench happened a lot faster than I thought: https://www.mdshooters.com/showthread.php?t=211738

I'm a very experienced reloader. And I'm always cautious about loading a "new to me round". I've already done a lot of pre-work and due diligence on the 450 BM cartridge. And I've found limited "published and validated" reloading data.

Much of the internet info is on shooting the round in an AR platform. This Ruger is a fairly strong bolt action rifle. Similar, but different.

What direction can the MDS brain trust send me on reloading 450 BM for my new "little beast"? Powder? Bullets? Primers?

:shrug:

Seabee · Jun 25, 2017

My Hornady tenth edition shows the 250 FTX with a max loads of 37.9 gr of Lil-gun and 40.4 gr of Win 296. COL 2.25"
I think the pressure limit of 39160 psi is your limiting factor rather than the rifle type.

Seabee · Jun 25, 2017

46.9 gr of Accurate 1680 is max for a 250 gr bullet with 2200 fps.
That is from their data

j8064 · Jun 25, 2017

Thanks Seabee. That's helpful. Buff7mm sent me some load data from his Hornady manual too.

I cast and shoot CB's in many calibers. I plan to use mostly jacketed bullets in 450BM loads, but for plinking I don’t see why these 300 gr CB’s with GC’s wouldn’t work at low velocities:
https://www.midwayusa.com/product/6...ll-452-diameter-300-grain-flat-nose-gas-check

Heck all I’d need is a mold and some GC’s. I have everything else on hand. If these CB's work in a 454 Casull, they surely would work in a 450BM.

Anyone's thoughts on shooting CB's in a bolt action 450 Bushmaster?

:shrug:

molonlabe · Jun 25, 2017

That must kick.

j8064 · Jun 25, 2017

molonlabe said:
That must kick.

No doubt it will. We'll see how it compares to the 45-70 Sharps I've been shooting lately...

j8064 · Jun 30, 2017

It appears few MDS members have any input on reloading 450BM rounds. In that case, I'll keep you updated on my experiences as I move forward.

Today a box from Graf's arrived. Inside was a Lee 300 gr .452 mold, some Hornady gas checks, 300 gr Hornady XTP bullets and extra brass. Hmmm - let the reloading begin. :thumbsup:

While waiting to hook up with my local source for dies I could not resist firing up the lead pot and making some boolits. Looks to me these will load and shoot just fine.

Stay tuned!

:party29:

outrider58 · Jun 30, 2017

j8064 said:
It appears few MDS members have any input on reloading 450BM rounds. In that case, I'll keep you updated on my experiences as I move forward.

Today a box from Graf's arrived. Inside was a Lee 300 gr .452 mold, some Hornady gas checks, 300 gr Hornady XTP bullets and extra brass. Hmmm - let the reloading begin.

While waiting to hook up with my local source for dies I could not resist firing up the lead pot and making some boolits. Looks to me these will load and shoot just fine.

Stay tuned!

Can't wait to see this thing in action(and maybe participate in said action). :thumbsup:

BUFF7MM · Jun 30, 2017

I'm holding the dies hostage. :innocent0

j8064 · Jul 2, 2017

Range & Reloading Report

Buff7mm said:
I'm holding the dies hostage.

Buff came through and had CombatAK courier the dies to me at this morning's Hooligan shoot. THANKS GUYS!!! :bowdown:

We only had a few factory rounds to shoot today, but all the Hooligans got to bruise their shoulder. We now know why they call the round "The Thumper"!

I'm OK with the first 50 yard target. we were close, but not enough ammo to zero the scope.

Back on the reloading bench no time was wasted. There will be plenty of ammo next range trip. Our bet is the reloads will go bang just fine.

Stay tuned...

CombatAK · Jul 2, 2017

It is a really nice rifle and the scope is, let me just say, "colorful." (In a good way) It sure is a "Thumper!" I am looking forward to making it go "BOOM" again.

j8064 · Jul 2, 2017

CombatAK said:
It is a really nice rifle and the scope is, let me just say, "colorful." (In a good way) It sure is a "Thumper!" I am looking forward to making it go "BOOM" again.

As you saw it's a cheap Wally World scope. But it works fine for the 100 yard shooting we'll be doing. :thumbsup:

I couldn't resist. Tourons be damned. I fired off one of my CB reloads out back and it worked perfectly!

Next range trip we will have plenty of ammo!

:party29:

450 Bushmaster Load Data?

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