450 Bushmaster ?

Tug McClutchin

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Amy other fellow 450 bushy shooters in here ? Love to shoot my little thumper and gonna start reloading for it when I get some time.
 
I had one for a while. It was very accurate with factory ammo, right at moa. I couldn't get good results with cast and eventually sold it. It was a lot of fun to shoot.
 
This is an older post however I am going to respond anyway. I finally located and purchased a new .450 Bushmaster upper from Midway USA. The wait has been to locate one with the 20" barrel. I haven't shot it yet but I bought 4 boxes of Hornady Dark ammo (250gr. FTX) and a set of Hornady dies, some Hodgdon LiL Gun powder and Winchester small rifle primers. My scope and rings will arrive tomorrow and after mounting the scope, I am off to sight it in. I'm looking forward to deer season this year.:)
 
OK so I decided I wanted to keep my 5.56 original Wyndham ME. Bushmaster together. I bought an Anderson lower and a Bushmaster lower receiver build kit and assembled a lower for the .450 Bushmaster upper. I got the idea for the lower receiver build when I was rummaging through my gun closet and discovered the original Mil-spec A2 stock, buffer, and buffer spring that was originally on my 5.56 Bushmaster. Here is a picture of it with it's brother the 5.56. The .450 is the top one.
20170913_165349_zpsrv2gqrhw.jpg

I took it to the range today and after sighting in the scope I put a fresh target on the cardboard. The single hole at the top of the target was the first shot after moving from 25 yards to 100 yards. I calculated the clicks and adjusted the scope and shot the following group. The first 3 shots were all touching, but I had to reload for the last two shots and had one flyer. The cluster group of four shots is > 1 inch center to center which is a hair under 1 moa. The .450 Bushmaster is an inherently accurate cartridge. I was shooting Hornady Black, 250 grain FTX cartridges.
20170916_141048_zpstmtdfmxs.jpg
 
Nice looking rifle!
Also like the big holes it punches, how is the recoil?

I have a little bruising on my shoulder, and I now know why they call it "Thumper!" The A2 stock is very hard and has a hard, sharp checkered butt plate. I imagine felt recoil would be much less firing offhand where one's body has some give. Shooting it at the bench off of sandbags really gave a good recoil pulse and 22 rounds with just a tee shirt was all I could do. Next time at the bench I will use a slip on recoil pad.
 
@Qball
I can't remember if he has a 450 bushmaster or 50 Beowulf
 
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@Qball
I can't remember if he has a 450 bushmaster or 50 Beowulf

.50 Beowulf. I love that rifle. For something that has a 16 inch barrel with a 1:20 twist, it's amazing how accurate it is. A hard hitting personal anti-material weapon is what it is.
 
I am impressed with the large caliber AR pattern rifles. From all I have read and personally witnessed with mine, they appear to be very accurate and consistent shooters.
 
I have a little bruising on my shoulder, and I now know why they call it "Thumper!" The A2 stock is very hard and has a hard, sharp checkered butt plate. I imagine felt recoil would be much less firing offhand where one's body has some give. Shooting it at the bench off of sandbags really gave a good recoil pulse and 22 rounds with just a tee shirt was all I could do. Next time at the bench I will use a slip on recoil pad.

I run a Magpul PRS stock on my Beowulf. It has a .308 buffer and spring in it. The increase mass of the stock seems to help a little. It still rocks my shoulder pretty good but not near as much as it did when I had a skeleton stock installed. It was brutal with that stock and I could only manage about 4 or 5 shots before I had to walk away. Mine doesn't have a brake so that's mainly why it has heavy recoil.
 
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I run a Magpul PRS stock on my Beowulf. It has a .308 buffer and spring in it. The increase mass of the stock seems to help a little. It still rocks my shoulder pretty good but not near as much as it did when I had a skeleton stock installed. It was brutal with that stock and I could only manage about 4 or 5 shots before I had to walk away. Mine doesn't have a brake so that's mainly why it has heavy recoil.

I had a Beowulf when they first came out in early 2000's I think.
I ended up running an Ace SOCOM stock on mine, it really soaked
up the recoil, made it much more shootable. I didnt have the brake either, dont think it was even
an option back then...
@Joker18 might try a different stock on there, bet it would really help!
 
I used that stock only because I had it on hand. I expect the felt recoil to be much less when firing standing or sitting in a tree stand. I imagine prone it would rattle my teeth. I do have a slip on recoil pad I can use till I find a more comfortable stock.
The thing I like about that stock I have now is the compartment in the stock with a stored cleaning kit.
 
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