Motivated Moscow Match Redux

[TCStehle]

I did a straight pull/push using Speer 90gr TNTs. I pulled the factory 100gr bullet and weighed the factory charge which was exactly 30.0gr for all 5 rounds. I then chamfered the case mouth, re-charged, seated a 90gr TNT at 2.210" and applied a light crimp using a Lee FCD. It's hard to determine the amount of crimp you're applying with the steel case but there were no marks on the case and the bullets were not deformed after crimping.

5 Shots out of a 16" BCA stainless steel barrel.

LabRadar:

Avg-2517
High-2533
Low-2503
ES-29
SD-11.7

1-2517
2-2503
3-2508
4-2522
5-2533

The factory Wolf ammo shot immediately before on the same day thru the same barrel.

LabRadar:

Avg-2520
High-2537
Low-2496
ES-41
SD-15.7

1-2502
2-2522
3-2496
4-2528
5-2520
6-2535
7-2537

So simply replacing the 100gr factory bullet with a Speer 90gr TNT yields roughly the same velocity but much better accuracy out of my rifle. My group size was easily less than 1/2 the size of the factory ammo and I wasn't really trying all that hard.

Hopefully someone finds this additional information useful during their Moscow Match experiments.