Thread: ES

Originally Posted by Lurch

7RM,unsure of jump as used OAL of load data but probably 0.150"
no vld stem or micro
dial vernier, hornady comparator
norma brass,whats good prep?
neck sized,check length,chamfer,clean inside of neck?
check

I use my BTO -Base To Ogive measurement as a rule for measuring as it's far more accurate and ballistic tips can be inconsistent lengths

A vld stem in your seating die allows for the more modern projectile shapes with longer olives and will five you more consistant seating. You can check this by measuring BTO

A micro meter on your seating die will help you you tune jump provided you have measured your maximum length to the commencement of rifling

I use a drill with shell holder to spin my case and insert a copper wire brush into the neck. This helps with even neck tension on the pill.

I have never had amazing results loading for a 7RM and remember chasing my tail with reloading for one.

It is a rabbit i have been down but these days I am more concerned about group size at 100 yards, fine tuning my zero to hit exactly where I am aiming at 300 yards. Then reading environmental conditions so I can decide on weather to take longer shots or not.

Good luck

What's a vld seating stem?
Is it just deeper hole inside to allow for longer pointed projectiles?

Originally Posted by Lurch

What's a vld seating stem?
Is it just deeper hole inside to allow for longer pointed projectiles?

More tapered. Will help with concentricity too