3000 is a little slow for 6mm Remington at 100 gr.
I didn't know my muzzle velocity for sure, but I am left here to contemplate it while the prairie dog is no longer with us.
243 Win vs 6.5 Creedmoor Bullet Ogive
- Thread starter Roamin_Wade
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I didn't know my muzzle velocity for sure, but I am left here to contemplate it while the prairie dog is no longer with us.
Please understand I have no need to shoot at any deer with a 24 cal. outside of 375 ish yds.
xphunter
Member
I added 30 fps from what factory listed for the 243 Win.
xphunter
Member
I am not suggesting that you should.
I just gave information/ballistic info.
Distance is a systems approach, and everyone has their own preferences and abilities. I am not going to tell you what you should do or not do.
One thing you will likely notice if you chrono 243 vs 6mm Rem loads is that the heavier the bullet, the bigger the difference in favor of 6mm Rem. With 100 gr. it canb pushed well over 243 Win velocities without pressure signs.
Also beware at least 2 gun writers have documented some odd pressure variations when loading 243 Win. This does not happen in 6mm Remington.
https://loaddata.com/Article/BenchTopics/The-243-Winchester/60
xphunter
Member
I already mentioned the Rem should do better with heavier bullets.
One of the limitations of that would be mag length...IF so it may be a mute point, or not as much , if it was throated longer
One of the limitations of that would be mag length...IF so it may be a mute point, or not as much , if it was throated longer
TikkaShooter
Member
There are 3 bullet designs: Tangent Ogive, Secant Ogive and Hybrid Ogive. This article as it explains the strengths and weaknesses of each might be of interest.
https://www.accurateshooter.com/ballistics/tangent-vs-secant-vs-hybrid-ogive-bullets/
https://www.accurateshooter.com/ballistics/tangent-vs-secant-vs-hybrid-ogive-bullets/
Mag length depends on the rifle. Savage short actions give you 3". Rem 700 are the shortest.
I think the ideal twist for 6mm Rem. is 1-9 or 1-9.5
I had a 1-10 that would not stabilize rhe 90 Swift Scirrocco.
If you are trying to go super sleek, target shooting with it the might as well do AI or better yet do a wildcat off of the 284.
xphunter
Member
Off topic more, but target shooting/competitions at 600 (Bench and F-Open) like small cases: 6 BR, 6 Dasher, 6 BRA, 6 GT (Gay Tiger), and 6.5x47 Lapua.
1K Bench: 6 BR, 6 Dasher, 6 BRA, 6 GT (Gay Tiger...new cartridge), 6.5x47 Lapua, and 300 WSM.
1K F-Open: 284 Win, 284 Shehane, 7 SAUM, 300 WSM.
There are others but these are primary cartridges, and they are primarily in single-shot actions. So, you can throat them accordingly.
These are all fast twist barrels.
1K Bench: 6 BR, 6 Dasher, 6 BRA, 6 GT (Gay Tiger...new cartridge), 6.5x47 Lapua, and 300 WSM.
1K F-Open: 284 Win, 284 Shehane, 7 SAUM, 300 WSM.
There are others but these are primary cartridges, and they are primarily in single-shot actions. So, you can throat them accordingly.
These are all fast twist barrels.
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