Last weekend ran a ladder test on a .308 win 168gr TSX seated at 2.775" (max in a savage 10fp is 2.825" +/- and Barnes suggests loading between .030 and .070 off the rifling) using Lapua brass and FGM210M primers with IMR 4064 powder. Found the sweet spot between 40.5-40.9 grs of powder.
Ready to confirm my findings this weekend but was wondering- what are people finding when seating their TSXs either closer or farther from the rifling, specifically in .308 Win.?
This last weekend I loaded up the three most promising loads of IMR 4064 being 40.5, 40.7, and 40.9 grs all seated at 2.807", 2.787", and 2.778". At 200 yards the best group of the day was moa.
Couldn't recognize any consistancy among the like charge loads or like seating depths, nor did I recognize any paterns of fire (ex: first shot low, second higher, third shot close to 2nd, etc...)
So for now I will have to conclude that a Savage 10fp in .308 with at 10 twist does not like the 168tsx/imr4064 combo.
As shooting budgets are tight and tsx's are extremely pricey, I'll try my other box of the same tsx's with H4895 and see what happens.
For almost $1 per bullet, if I can't get the tsx's to group between 3/4 and 1 moa I'll have to stick with Hornaday 165 gr interlock sp's.
Thanks for testing these in your Savage...I may still give them a try in mine at some point but no rush given your results. ( and the $$ of these bullets) I have had very good results with the SMK (.3-.5MOA @200) for non-hunting bullets and the SGK (.75MOA @200) for a true hunting bullet in my gun.
I will be trying the Berger VLDs in my Savage .308 as soon as the wind drops below 20MPH here According the the aviation forecast maybe Wednesday or Thursday.
How was the copper fouling in your Savage? does it still wear the factory barrel?
"My greatest fear is that after my demise my wife will sell my guns for the price I told her I paid for them"
-don't know where it came from...but true
After my previous disappointments with the tsx/imr4064 combination I did an OCW test yesterday using 168gr tsx's with H4895 seated to an oal of 2.815. The three charges of 41.9, 42.2, and 42.5 all had group centers that were about a quarter inch of each other and group avarages for the three were .75 moa at 100 yards.
Next weekend I'll work up more of these loads to confirm what I found and also possibly play with the oal to tighten the groups.
If you guys have similar experiences or comments please feel free to post.