Very hard to find at a reasonable price these days.
Federal really hard to find, especially reasonable. Did find some, but its
$160/brick or $80 per 500. See list.
In today's market for LRM primers I think anything below $125 is pretty good deal per brick. Alamo Ammo in San Antonio seems like the best deal, but depends on their shipping and hazmat and reviews too.
They take credit cards and seem to have a real store front, but you can call them if you like. I have not ever ordered from them. They have both the Remington 9 1/2 LRM and the CCI 250s
good luck...
CCI Primers No. 250 Large Rifle Magnum CCI0015 Brick of 1000 Count
CCI Primers No. 250 Magnum Large Rifle CCI0015 Brick of 1000 CountRemington Large Rifle Primer 22622 No. 9-1/2M Magnum 1000 Count
Remington Large Rifle Primer 22622 No. 9-1/2M Magnum 1000 Counthttps://alamoammo.com/primers/large...campaign=ammoseek&utm_medium=cse&asaid=as0006
https://alamoammo.com/primers/large...campaign=ammoseek&utm_medium=cse&asaid=as0006
https://www.outdoorlimited.com/feat...fle-primer-22622-no-9-1-2m-magnum-1000-count/
Only ½ brick
https://republicammunition.com/product/federal-large-rifle-magnum-primers/