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6.5cm discovery

I'll always choose accuracy over velocity, but there's often more than one accuracy node in load development. I've developed several loads in 6.5 CM, and the powder charge you've settled on is a bit lower than what most loaders use for this cartridge.

My loads in H4350 (which is a great stable powder for the 6.5 CM) are in the 41.8 range, delivering 140-143 grain bullets in the 2750 fps range. You didn't state what your velocity is, but with that powder charge, I'd guess in the mid 2600s. These loads of mine are grouping 3-shot groups below .5 moa, so I'm not giving up any accuracy.

Most powders are around 50 fps per grain, so you're leaving about 100 fps velocity on the table. That's not a ton of speed, but if you wanted to continue the load development, I'd bet a pastrami sandwich you'd find a good accurate load in the upper 41 grain range. It will give you better terminal energy and better wind compensation.

I'm shooting a CA Mesa with a 22" barrel, so I'm giving up about 20 fps with the shorter barrel too.
"MOST POWDERS ARE AROUND 50 FPS / GRAIN?" Where'd you come up with that number? Not remotely accurate information!
 
My CM just loves 42.4 gr of H4350 and ELD-X 143 gr bullets. Four shot into .392" at 200 yds with a "gremlin" flyer opening the group up to .9". Still I'll take 1/2 MOA anyday. If that flyer is omitted that's <1/4 MOA!
Bomberodevil: how in the world are you getting 2750 with a 140 gr bullet and 41.8 gr of H4350? I'm only getting 2640 with 42.5 gr! And my ballistics are spot on as I took 2 deer with consecutive shots at 250 and 300 yds within 3 mins of each other.
 
My CM just loves 42.4 gr of H4350 and ELD-X 143 gr bullets. Four shot into .392" at 200 yds with a "gremlin" flyer opening the group up to .9". Still I'll take 1/2 MOA anyday. If that flyer is omitted that's <1/4 MOA!
Bomberodevil: how in the world are you getting 2750 with a 140 gr bullet and 41.8 gr of H4350? I'm only getting 2640 with 42.5 gr! And my ballistics are spot on as I took 2 deer with consecutive shots at 250 and 300 yds within 3 mins of each other.
Elevation? Getting 2790-2810 out of a 26" barrel @ 2350 elevation
 
I did not believe any of the Creedmoor hype. I was a long action cartridge hunter. 30-06, 270 Win, 338 Win Mag. Then I got into 270 WSM and found that short action cartridges could still kick ***. My Dad always killed deer with .308 Winchester.

My first 6.5 Creedmoor in a Sauer 100 was totally shocking to me. Another followed in Mauser M18. And another Sauer 100 in 30-06 and was blown away that kind of accuracy could come out of a larger, more powerful cartridge.

When you have pinpoint accuracy, you can blow their brains out.
 
My 6.5 CM has probably been the easiest rifle to work up a load with. I purchased my CM to shoot instead of shooting my hunting rifles all the time.
I have loaded 2 different 140 grain bullets (eldm / BT) using 4 different powder's and all have been good.
If you are only going to shoot a half box a year then you may as well just buy a few boxes of the same lot but as was mentioned above the next time you buy the results may not be the same. I'd just buy some bullets and load em up and then you know that they will shoot but I enjoy working up loads.
Top pic 140 eldm. Bottom 140 BTView attachment 627828View attachment 627829
Same here, I bought the barreled action on sale, bought all the other parts during the Christmas specials. What's not to like, cheap as all get out to shoot. Accurate and shoots like a .22 long rifle. Have a slot reserved for up to 2000 yard line at Cameo on Thursday for myself, daughter and son to shoot steel. Oh yea, 2000 round barrel life. And I'm bald. IMG_4601.jpeg
 
Same here, I bought the barreled action on sale, bought all the other parts during the Christmas specials. What's not to like, cheap as all get out to shoot. Accurate and shoots like a .22 long rifle. Have a slot reserved for up to 2000 yard line at Cameo on Thursday for myself, daughter and son to shoot steel. Oh yea, 2000 round barrel life. And I'm bald.View attachment 628177
I'd kill to be able to have enough hair to make a man bun! 🤣
 
Elevation? Getting 2790-2810 out of a 26" barrel @ 2350 elevation
I'm at 1300 so that much difference in 1000' elevation?
From what I've read the difference per 1000' in elevation is approximately 1% so at 2640 fps + 1% only increases velocity a bit over 26 fps or to 2666 fps. I just can't see 2750 using less of the same powder.
 
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Anybody load the 129gr ABLR in the 6.5 Creedmoor? How does that shoot?
Shot 130 Sierra tipped game kings,called the "game changer"
It shot and still shoots great,and put the smack down on deer! That's the one the little girl has. H4350 42.9 grains, 2775 fps. Should have been faster, but its what it is. I suspect it will speed up over time. But sense it only gets shot ten or twelve times a year I'll never know.
 
I'm at 1300 so that much difference in 1000' elevation?
From what I've read the difference per 1000' in elevation is approximately 1% so at 2640 fps + 1% only increases velocity a bit over 26 fps or to 2666 fps. I just can't see 2750 using less of the same powder.
I'm getting my speeds with 41.5 h4350 and .250 moa consistently over 10 Rds. 26" tube
 
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