Looking for info (6x45 w/ 90gr Game changer)

I cannot find load data on this particular bullet in this caliber. Neither my Lyman nor my Hornady manuals have any 6x45 data in them. I want to load the 90gr sierra Game Changer. I do not have the sierra manual. Before I buy it, I was hoping someone might have the info I'm looking for. Otherwise I don't know where to look.
Try calling Sierra. Every time I have called them they have been very obliging. Good Luck on the 6x45. I am currently working on 85 gr Speer with H335. Going to go down to 70 & 75 gr and see how they shoot. The longer bullets take up too much case capacity in my opinion. For the range on the 6x45 I think a flat base bullet will be a better choice.
Edited to add my project is a bolt gun.
 
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I cannot find load data on this particular bullet in this caliber. Neither my Lyman nor my Hornady manuals have any 6x45 data in them. I want to load the 90gr sierra Game Changer. I do not have the sierra manual. Before I buy it, I was hoping someone might have the info I'm looking for. Otherwise I don't know where to look.
Perhaps this might help. Good luck... Cheers

6X45MM 1.jpg
6X45MM 2.jpg
6X45MM 3.jpg
 
I tested a lot of different bullets and powders with the 6x45 in a Remington 700 platform. H335 was the best powder for 70gr and up. The TNTs were an easy button, as well as the 90/95 grain bullets.

For some screaming 55gr try AA2200. I don't have my numbers with me at work but it was over 3600 fps with the 55gr Shot bullets.

Great cartridge for minimal powder use. I just struggled to get it to feed properly. I think if I was to revisit it, I would just go with a Magpul stock and AICS 223 mags.
 
I have a PDF with a lot of 6X45 loads in it. Not sure where it is from anymore, but I got my hands on it a few years back when I built my 6X45.

I have attached it here.

DISCLAIMER: I HAVE NOT PERSONALLY VERIFIED MOST OF THESE LOADS! AS WITH ALL RELOADING, START BELOW MAX AND WORK YOUR WAY UP. USE DISCRETION WHEN USING THE DATA FROM THE ATTACHED!
 

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I will also add that the powders that work good for heavy bullets in the .223 will work with the 6X45.

The GameChanger bullets may be a bit too hard for the velocities of the 6X45. I have had much better luck with match and "varmint" bullets in mine for hunting. I have taken multiple whitetails and a black bear with mine.
 
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