Thanks Bob.
For subs I will be using Trail boss, I need to back it down to 11 grains from 12 to get the velocity to around 1000-1050, with the 225 FTX, 12 was giving 1050-1100.
I increased the overall length & the groups got better & better.
I have some more work to do this weekend, bedding & load development, before I send it to the customer, , he is so excited about it
Tried H4350 & H4831Sc but there was way too much un-burnt powder floating around in the action, magazine & trigger
Pictures etc as requested
A couple of 450 Bushmasters I just got finished.
The both have 12" barrels & McMillan stocks.
The first one is a T3 Tikka, for supers & maybe subs.
![Image](http://i1004.photobucket.com/albums/af161/Kiwi-Greg/450Bushmasters024_zps19597ef0.jpg)
![Image](http://i1004.photobucket.com/albums/af161/Kiwi-Greg/450Bushmasters030_zps98445b3a.jpg)
It weighs 3.250kg, 7.16lb as seen in the pics with Mk4 scope & DPT suppressor.
![Image](http://i1004.photobucket.com/albums/af161/Kiwi-Greg/450Bushmasters029_zpsee390940.jpg)
It shoots the Factory Ammo pretty well
![Smile :)](./images/smilies/icon_e_smile.gif)
![Image](http://i1004.photobucket.com/albums/af161/Kiwi-Greg/450Bushmasters034_zps646704eb.jpg)
The other one is a light weight Rem 700 SA, predominantly for subsonic.
![Image](http://i1004.photobucket.com/albums/af161/Kiwi-Greg/450Bushmasters046_zps3243bb54.jpg)
![Image](http://i1004.photobucket.com/albums/af161/Kiwi-Greg/450Bushmasters037_zpsf215a355.jpg)
It weighs 2.705 kgs, 5.96lbs as seen in the pics with scope & Scotts suppressor.
![Image](http://i1004.photobucket.com/albums/af161/Kiwi-Greg/450Bushmasters043_zpsbbbd9d94.jpg)
![Image](http://i1004.photobucket.com/albums/af161/Kiwi-Greg/450Bushmasters041_zps9841f05e.jpg)
It shoots the 225 FTXs subsonic pretty well
![Image](http://i1004.photobucket.com/albums/af161/Kiwi-Greg/450Bushmasters049_zpsed1430d2.jpg)
Here is a 250 factory ammo, next to a 225 FTX & 300 XTP subsonic reloads.
![Image](http://i1004.photobucket.com/albums/af161/Kiwi-Greg/450Bushmasters047_zps6974bda4.jpg)
It looks like it is going to be a fantastic bush calibre
![Smile :)](./images/smilies/icon_e_smile.gif)