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Discussion Starter #1
As always use at your own risk. Data given is less than Lyman's MAX pressure listed in 49th edition.

AWESOME RESULTS AT 200 YARDS! This past weekend I had a chance to work up loads from 40gr to 45gr in 0.5gr increments using IMR 4895 and 150gr FMJBT.
For all loads I used the same brass, trim, col, bullet, and primer.

150gr Hornady FMJBT
CCI #200
IMR 4895
Lake City once fired - thoroughly cleaned and primer pockets cleaned
Trimmed cases to EXACTLY 2.010" on all cases.
COL EXACTLY 2.800" on all loads

5 rounds where shot at each of the grain increments and groupings compared.

44.5gr IMR 4895 is the WINNER in my 17S!

44gr and 45gr were less accurate than 44.5gr.

The following 5 shot grouping were made from 200 yards using a Scar 17S with Leupold Mark 6 1-6x20mm Illuminated CMR-W 7.62 Reticle and LaRue Tactical OBR QD Scope Mount LT111. I also have a Timney trigger in the 17S.

IMG_3583.jpg IMG_3584.jpg IMG_3582.jpg

If any of you are wondering about the target, it's my HOME MADE shoot and see - it's really simple to create one of these.
Buy any neon poster board, cover one side using cheap CLEAR packing tape (I bought both poster and tape from the dollar store), spay paint black the tapped side and your done!

I hope this info is useful for some of you.
 

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Thanks for the target board tip.
 

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MMB - how's the results on your second and 3rd trip with that load of 44.5gr? Is it repeatable?

On some of my load recipes, I get great results (under 1 MOA @ 200yds) but not consistently repeatable results on follow-up trips to the range. Sometimes makes me second guess myself and retry other recipes again.

Much easier to get consistent results with my 17s, but my 16s is a PITA to get really good repeatable accuracy.

But then again I have only ~600 rds through my 17s vs. 6000+ through my 16s. Just dreading the realization that the only way to improve my 16s is put on my spare barrel... But then I'll have to reverify and retest all my recipes on it. And then start shopping for another spare barrel @ $1200...
 

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MMB - how's the results on your second and 3rd trip with that load of 44.5gr? Is it repeatable?

On some of my load recipes, I get great results (under 1 MOA @ 200yds) but not consistently repeatable results on follow-up trips to the range. Sometimes makes me second guess myself and retry other recipes again.

Much easier to get consistent results with my 17s, but my 16s is a PITA to get really good repeatable accuracy.

But then again I have only ~600 rds through my 17s vs. 6000+ through my 16s. Just dreading the realization that the only way to improve my 16s is put on my spare barrel... But then I'll have to reverify and retest all my recipes on it. And then start shopping for another spare barrel @ $1200...
I should be going back to the range soon so I'll post the results. The 17s is VERY accurate and I love shooting with the Mark 6 CMR-W - it's dead on. The next loads I'm working on will be for 120gr SMK HP I bought for the 300 blackout. I want to load something like PDX1 DEFENDER.
 
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