425gr Maker's Subsonic!

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425gr Maker's Subsonic!

Postby Bmt85 » Sat Mar 17, 2018 11:15 am

So I was looking around at 450B components, and saw that Maker's is now making a 425gr expanding bullet for the 450B! They recommend a 1:16 twist rate, but I played with Berger's twist rate calculator and it shows that a 1:18 twist should work just fine, a 1:20 twist might work depending on elevation and temp.

http://makerbullets.com/proddetail.php?prod=452425SUBREX
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Re: 425gr Maker's Subsonic!

Postby jccinohio » Sat Mar 17, 2018 5:48 pm

I liked their .223 subsonic expanding.. really opened up at 1000fps.. Thinking of giving the 308 ones a go..
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Re: 425gr Maker's Subsonic!

Postby plant_one » Tue Mar 20, 2018 11:16 am

the Rex series in 308 work very well. The guys at maker worked with several of the brighter minds over on the 300 blk website to get them tweaked and flying correctly as the early versions had some bugs to address (stability issues in varying twists).

otherwise the expansion is incredible and they really put a hurtin down when metal meets meat :)
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Re: 425gr Maker's Subsonic!

Postby Bmt85 » Tue Mar 20, 2018 4:25 pm

I have a couple other Maker's bullets to work up, but from what I've seen, they make some nice stuff. I also really like the fact that you can call them, and you talk directly to the owner, and he will experiment with just about anything. I was going to try his 250gr .458 bullets in the 450B (size them down of course), and had a couple questions about dimensions. When I told the owner (can't remember his name) what I was trying to do, he said he would make them the correct size. I said I wanted to try .4515, and he made them. I still haven't really worked up the 250gr yet (I will get around to it), but I ordered some the 425gr to play with, and I think I might see if he can make around a 200gr version.
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Re: 425gr Maker's Subsonic!

Postby Bmt85 » Wed Mar 21, 2018 6:21 pm

So the 425’s came in today.

Left to right:
Maker’s 250gr, Maker’s 425gr sub, Barnes 275 TSX, Barnes 200gr XPB

Image
Last edited by Bmt85 on Thu Mar 22, 2018 2:35 pm, edited 2 times in total.
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Re: 425gr Maker's Subsonic!

Postby Al in Mi » Thu Mar 22, 2018 3:50 am

can you take a pic and measure the depth of that nose cavity?
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Re: 425gr Maker's Subsonic!

Postby plant_one » Thu Mar 22, 2018 9:05 am

i'll be curious to learn as to how that long heavy soup can stabilizes in a 24 twist barrel.


this might be a prime candidate for those fast twist barrels out there (1:16) - at least for use in the subsonic realm.


although going into a target sideways at 975 fps w/ full tumble could produce some interesting results too! :mrgreen:
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Re: 425gr Maker's Subsonic!

Postby Bmt85 » Thu Mar 22, 2018 1:47 pm

Don't know why the pic came out turned. From my phone its upright. Ill see if I can fix it.

Al, the nose cavity is about .800" deep. The three cuts on the outside of the bullet are about .720" long. What exactly do you want a pic of? The hollow point?

Plant_one, I measured the bullet length and it is 1.3810". when playing with a twist rate calculator it looks like at a speed of 1050fps, temp of 0*, and an elevation of 0ft, a 1:18 twist should fully stabilize it. A 1:20 should be able to with some elevation and temp increase. I have a 12.5" Blackhole weaponry barrel (1:18 twist) I will try them in. Chances are it won't cycle because I ordered it with a carbine length gas system. I will probably look around for decent priced barrel, somewhere between 9.5"-12.5", with a pistol length gas system, and at least a 1:18 twist.
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Re: 425gr Maker's Subsonic!

Postby Al in Mi » Thu Mar 22, 2018 7:05 pm

Yea nose cavity. Thx
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Re: 425gr Maker's Subsonic!

Postby Bmt85 » Fri Mar 23, 2018 2:34 pm

Took a pic of the nose.

Image
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