I think the only thing reworked on them is the machine they go into to get roll stampedIf my memory still works, aren’t they just a reworked copy of a Winchester Model 70?
FN’s in the first early days of the Winchester affiliation had Winchester roll marks. The bases were Near two piece, then they went to the one piece. They shared the Winchester trigger, then Winchester went to the MOA trigger.
I’m not certain if the MOA trigger made it into the last Patrol rifles or not, but the TSR series should have them. The TSR were the last ones out the gate. The 223’s were on super short actions, the 308 and 300wsm were standard short actions.
I’ve swapped bottom metal and magazine bottom metal between M70’s and FNs.
I believe the MOA trigger is slightly different in the FN from what I’ve read, how it is adjusted from the factory IIRC. Ive never had or fired one of the TSR rifles.
The FNs with the lever trigger will take aftermarket triggers made for the standard M70, I imagine that the TSR series with the MOA would likely as well. I’m running a Keplinger set trigger in a 260 built with an SPR action. Big Bertha.
Patrol have hammer forged barrels SPR have chrome lined.
Mostly the same. QC on the FNs is tighter. I recall asking an FN engineer many years ago what they did with the rifles that didn’t shoot sub MOA or better. He replied that they take them apart to find out why….