.2-.3 100 yard cold bore challenge

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My buddy shot this at 400 yards with the first 3 shots on a ladder test, .2gr increments starting at 40.2gr of h4350 with the 143eldx in his 6.5cm McGowen barrel
 
Not 5 shot groups, but here are a few 3 shot groups with 2 Factory Loads and 1 Copper Creek Custom load out of my 6.5 Creedmoor hunting Rifle at 100yds.

Barrel was allowed to cool between each shot in each group since I was going for First Shot accuracy and zero for a hunting rifle.

Copper Creek Load with 127gr LRX
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Norma Ammo 130gr Scir II
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Winchester Deer Season XP 125gr. Good group, but way right in my rifle compared to the other loads.
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Per the original post, even the ugly. Top left- clean bore fouler. Three together 1,2,3, 4th to the right. 1" squares.
Older 700 sendero special 25-06, CE trigger.
Factory Federal Premium 110 AB.
Update, same rifle but after a bunch of reading on here worked up the nerve to try bedding for the first time. Still factory ammo- Hornady 110 ELD-X at 200 yards this time. I really think it's tip on technique I've picked up here more than anything. I've never shot a 5 at 200 that good before.
 

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Thought I would play along. The wind was really variable and kicked up on me for shot 5 or I'd be looking more at what I am used to as far as group size goes. Shot off a bipod from bench.
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More what I am hoping for. These are groups from a better day.
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I finally quite being a slack-*** and got it did.

Hot group was my first group of the day, little dude hanging to the right was the last shot of the group and was definitely me. Cooler group was last group of the day, after the rifle sat for 5 hours. 5 rds each @ 100yds This load has a horrid SD. Rifle is a 12FV in a take off accu-stock. 1" target paster. Shooting groups i usually dial 10 up, then 10 over, then 10 down, etc until I shoot 8 groups around the box and finish back on zero. Get 9 groups for the price of one paster and work the scope a bit.
 

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Ok I'm in for a Spin !
First picture is 100 yard. Load development
338 Edge build , 300 gr bergers . Start top left at 90 gr. up to 90.5 . 2849 ft.per.sec
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Second picture is another 3 shot group at 3027 yards . Personal Best !
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26 3/4" group at 3027 yards.
Target is 36" x 36 "

Rum Man
 
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