I bought a Rem 700 ADL in 300 WM, but decided to shoot it first before tearing down for the action for another project.
I put an aluminum chassis on it, threaded it for a muzzle brake, and took it to the range.
The first 5 shot group went into 1/2 MOA with 200 SMK handloads. Everything else stock off the shelf $540 Remington ADL 300 WM shot as well as a multi thousand dollar rifle.
Target in 1st picture. Factory Rem 300 WM in Alum chassis, $540 on sale plus $400 for the chassis.
So put the barreled action in an aluminum chassis, center feed mags increase the COAL to 3.715" on mine, but 3.850 mags are available for some chassis.
Allowing seating near the lands, and adding powder capacity, for more velocity.
The Australian shooting couple did the same thing with a factory 308 Win Police rifle, stock 26" barreled action put it in a chassis, and took it to 3000 yds with 2 hits in a row out of 10 tried.
The Rem 700 old and new have been good actions for custom builds.
Mine will shoot tiny groups, especially with a premium barrel.
With many different bullets and several powders... 13, 5 shot groups averaged .313" that day.
Almost a 1/4" rifle "all day long" for real. And easily so, with a better shooter.
Remington 700 actions old and new shoot very good. I use them almost exclusively for my custom builds ...
View attachment 8472507