Reloading 458 scm with extreme bullets

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10-22-2018, 12:53 PM
T.coates

Reloading 458 scm with extreme bullets

Im have a tough time finding load data that will,slow down my 458 under 1500fps so i can use theae 300gr extremes.

What is the fastest i can safely make these?
My goal is to slow them down within safe range and have gun cycle reliably while maintaing a 30-35gr charge.
These are plinkers not hunting rounds
10-22-2018, 01:01 PM
CodySPowell

Quote:

Originally Posted by T.coates

Im have a tough time finding load data that will,slow down my 458 under 1500fps so i can use theae 300gr extremes.

What is the fastest i can safely make these?
My goal is to slow them down within safe range and have gun cycle reliably while maintaing a 30-35gr charge.
These are plinkers not hunting rounds

I'm not overly familiar with 458 but I know the Xtremes can be pushed real hard. The 1500fps is a recommendation. A few guys here push them much further with no problems.
If you can, ask Keith Hodgkins. He's a 458 guy.

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10-22-2018, 01:10 PM
Wes Sage

I talked with Keith, and he will comment later when he is free ;)
10-22-2018, 01:24 PM
Rottieman33

Quote:

Originally Posted by T.coates

Im have a tough time finding load data that will,slow down my 458 under 1500fps so i can use theae 300gr extremes.

What is the fastest i can safely make these?
My goal is to slow them down within safe range and have gun cycle reliably while maintaing a 30-35gr charge.
These are plinkers not hunting rounds

Will be home in about an hour to help you

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10-22-2018, 02:24 PM
Rottieman33

Ok what powder you going to use

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10-22-2018, 03:00 PM
Rottieman33

.https://uploads.tapatalk-cdn.com/201...583dd9d479.jpg

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10-22-2018, 04:49 PM
T.coates

Powder depended on what velocity i could run
Im fond if IMR powders. So was thinking the 4227,
Keepung,it at 30-35 grains is to,maximize how,many i can,make per lb
10-22-2018, 04:54 PM
Rottieman33

These speeds are with Large pistol primers not magnumshttps://uploads.tapatalk-cdn.com/201...77226d8bd9.jpg

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10-22-2018, 05:25 PM
T.coates

Those for 300gr?
10-22-2018, 05:25 PM
Rottieman33

Quote:

Originally Posted by T.coates

Those for 300gr?

Yes

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10-22-2018, 05:27 PM
T.coates

Ty. Lots of help.
10-22-2018, 05:47 PM
tabascoman

https://uploads.tapatalk-cdn.com/201...7fc2eacd6d.jpg
If you’re wanting a plinking lot I’d look at imr4198. Book max is about 34-35gr and it’s a fairly cheap powder. I use all Alliant 2400.

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10-22-2018, 05:52 PM
tabascoman

Wrong one. https://uploads.tapatalk-cdn.com/201...99944362c3.jpg
29.5gr rl2400 gets me over 1800 with 300gr nosler ct bullets

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10-22-2018, 05:53 PM
tabascoman

Reloading 458 scm with extreme bullets

One in the left

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11-06-2018, 02:55 PM
T.coates

What oal on extremes? Crimp.. Yes, no, mild heavy??
11-06-2018, 03:21 PM
Rottieman33

Quote:

Originally Posted by T.coates

What oal on extremes? Crimp.. Yes, no, mild heavy??

OAL can't be any longer then 2.260" and i don't crimp any of my 458 Socom rounds

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