260 ai Reamer spec and load data

[806guns]

I have decided i want a 260 ai in my life. This will be a a target/hunting rifle. Maybe a Nrl Hunter one day match. I have been searching hed through threads and forums. Manson offers the best reamer imo that I have found without going a custom route.

Anyone have any feedback with this reamer? I have about 12lbs of H4831SC so It will be perfect for this setup.
22" or 24" 8 twist medium palma fluted or similar contour
Will be one of three barrels for my Origin medium action load up to 3.2"
Plan on using 144gr up to 153, 156 mainly.
Alpha will he doing a run of SRP brass in 6-8 months. But I have a lot of starline brass.

 

[Hydra6]

Watching with interest. I have an old school PRS rig in 260 I used on a one day NRL Hunter event. I have been running 140s but picked up some 156s to try.

 

[Wrench]

I've built a lot of 260ai's and 4831 will push a 140 just under 3k with ease and good accuracy.

For PRS the shoulder is steep so feeding can be an issue if the draft angle isn't right and I put a bit more chamfer on the chamber.

I don't have my reamer print handy to compare.