Thread: Kimber Montana Ascent 280AI Load Development

^600y.

Originally Posted by Tikka7mm08

^600y.

Might need a click for spin drift

Not at 600y...probably just me pulling to right or a wobble.

Interesting cold SWest afternoon at range.

1st shot 400y at gong off bipod and last shot of the day 400y off sinclair benchrest. 180gn ELDms. Happy with that. Ran out of white paint.

Ladder test with 162gn ELDMs at 3.340" COL.

Happened to have 3 rounds at 60.5gn and 3.340" COL so tried them. Group not great but impeccable SD. Worth a try again as great LR potential. Perhaps also at 3.320 and 3.330?




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The most painful thread ever. Go hunting !

Originally Posted by Nathan F

The most painful thread ever. Go hunting !

Just sit in your corner counting all the free 223 brass I sent ya. I love tinkering with loads!

Originally Posted by Tikka7mm08

Just sit in your corner counting all the free 223 brass I sent ya. I love tinkering with loads!

And I love giving you shit as you know xx

It hadn't escaped me! LOL

I'd say you're overdue to give up killing steel and go out chase some animals. My Ackley got a reasonable workout over the weekend- DRTs on big sika stag at exactly 400 and smaller one at about 200, final big stag made it about 5-10yds on 296yd shot, bits of lung draping over scrub.

What speed you got the 180's doing?

180s are consistently on 2810fps at 58.4gn RE26 with 22" barrel from memory.

We're covid isolated at home with a son who caught it at Lincoln Uni halls...hope to get out after that, up the Upper Waimak.

At the range. First shot clean cold barrel very still (before easterly) at 600y gong...this time no left hand forward but at rear of stock. Good result. Was a fallow spiker in front of the gong for a few minutes. Tempted.

Then a clean and 162gn eldm with 60.5gn RE26 first group with Fed LRM primer (instead of CCI LRM) at 3.340" COL. Speed up but also much warmer day. Adjusted the rest during group to remove play. Worth another go round.

3.330" COL CCI primer over 60fps spread between 1 and 2 shots so 3rd left alone.





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Tried some 168gn Bergers. Very consistent speed but accuracy off. Going to try with suppressor to see if improves with change to barrel harmonics.



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