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Discussion Starter · #1 ·
Just picked up a used 450 guide gun. I bought some barnes 300 grain copper bullets. I wanted to get the 250's but midway was out. Gun came with 50 empty new cases and 20 once fired cases. Anyone load barnes copper 300's in 450 marlin. I got the barnes load book so I have some info but I would like to hear from anyone who has loaded them before.
 

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Premium Member
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1,084 Posts
Discussion Starter · #5 ·
So I reloaded some ammo and got 2000fps from my guide gun with 49 grains of h4198 with a 300 grain barnes tsx bullet. Case capacity is at 105%. I was thinking about trying some H322. Havent used H322 yet. I know a lot of guys like it for the 45-70 and 444 marlin. Or maby some H335. I wanted to get a little higher muzzle velocity.
 
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