Sierra 88 TMK Load Data

[Formidilosus]

Interesting. I must either have a bad lot of BH or my gun just doesn’t like it. It groups horribly but the speeds are there.

Recent lots have been very erratic. The last 2-3 have been 3+ MOA from known guns.

 

[KyleR1985]

I want to make the 88s work, as they just look like they should be shot at an elk... but even with the 7 twist barrel in my Savage, I'm just not sure I can get enough velocity to justify them without pushing things. Or AI'ing it. Or both. But the 77 is no slouch... and I'd probably never shoot at big game beyond 500 anyway.

Seeing some folks get up into 2700 without AI gives me some hope, but the throat in my Savage is only going to allow 2.40ish OAL so that may hold me back (but also feeds from factory mags).

I ordered 500 77 TMKs recently, but I'm still trying 88s in the mean time.

How long does the mag/mag box allow you to load?

It takes about a half an hour to cut a longer throat and costs 60.00.

Sample size of 1, but the gun got more accurate after throating (controlling for jump, velocity, etc.).

If you can feed 2.5” reliably, there’s nothing holding you back on 88’s.