How do you know what the book velocity barel length was!!
Barrel Length
- Thread starter LocalJW
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Here's Bergers. Info.
205s 300PRC out of 26" barrel.
Go to a 22" well Tn. 25x4 =100fps less.
Then the other data is strelok. 205s @ 2850fps
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Shane Lindsey
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So at the max you listed at 400 yards, there is a 118 FPS difference.
Here is an example from my loads.
215 Berger in 300wm w/ 24" barrel and loaded short to fit in Ruger mag box (3.34" and anemic, I know, until you run the numbers) at 2686 FPS is 775 yards at 1798 FPS.
215 Berger in 308 Win w/20" barrel at 2493 FPS is 625 yards at 1792 FPS.
Both max "effective " functioning range. But the difference is negligible. 150 yards less range but 193 FPS difference from start velocity.
Not apples to apples and a totally different cartridge just to show the difference in velocity...not much really.
Add a can and you may a few FPS, but again not enough to matter.
Here is an example from my loads.
215 Berger in 300wm w/ 24" barrel and loaded short to fit in Ruger mag box (3.34" and anemic, I know, until you run the numbers) at 2686 FPS is 775 yards at 1798 FPS.
215 Berger in 308 Win w/20" barrel at 2493 FPS is 625 yards at 1792 FPS.
Both max "effective " functioning range. But the difference is negligible. 150 yards less range but 193 FPS difference from start velocity.
Not apples to apples and a totally different cartridge just to show the difference in velocity...not much really.
Add a can and you may a few FPS, but again not enough to matter.
Best in my opinion, only means best selling. earlier on rifles had shorter barrels, in the last 10 years we've gone to a trend of long barrels, but with suppressor purchases on the rise I see barrels going back to being shorter in the future.
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Many books list the test barrel in the specs above
Shane Lindsey
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I would look at a load manual or online powder site.
Take their mid range velocity and go from there. If you get to published max or higher, will be a bonus.
Mike Matteson
Well-Known Member
Man you like to carry the weight. I don't think you were using a heavy enough bullet on that 100lbs Antelope either. Or did you wanted a workout.
lancetkenyon
Well-Known Member
My opinion:
For an unsuppressed .300PRC, 26". No need to hobble a cartridge designed for longer range with good speed with heavy bullets by losing 4" of barrel length and 100-150+fps.
If your limits for hunting distances meet what your rifle can do, then either will work.
I have identical builds with only a barrel length difference (26" and 20"), and have never noticed any issues carrying a 26" w. 9" can vs a 20" w. 6.25" can. Both shoot tiny groups. Just one does it with 126-175fps more velocity depending on which load.
As far as "short barrels being more accurate", that is not true. But, short barrels can be more FORGIVING and easier to tune. It may just take a bit more work to get a long, skinny barrel to shoot well. And to shoot longer strings well.
For an unsuppressed .300PRC, 26". No need to hobble a cartridge designed for longer range with good speed with heavy bullets by losing 4" of barrel length and 100-150+fps.
If your limits for hunting distances meet what your rifle can do, then either will work.
I have identical builds with only a barrel length difference (26" and 20"), and have never noticed any issues carrying a 26" w. 9" can vs a 20" w. 6.25" can. Both shoot tiny groups. Just one does it with 126-175fps more velocity depending on which load.
As far as "short barrels being more accurate", that is not true. But, short barrels can be more FORGIVING and easier to tune. It may just take a bit more work to get a long, skinny barrel to shoot well. And to shoot longer strings well.
Stevenstl86
Well-Known Member
Anyone shoot 22" 300 prc launching 200-215 hand loads. What speed are they seeing? I would hope it could match a 26" 300wm.
over 24" with a can its way out there and starts to be unbalanced a lot.
over 24" with a can its way out there and starts to be unbalanced a lot.
I don't necessarily "like" the weight, but I don't shy away from a Heavy rifle that is insanely accurate. As to the 180 7mm, it's just the wind. My wind calls suck and higher BC's stack a little more in my favor. The backup was an even heavier 300 PRC shooting the 245 Berger. I have taken PLENTY others with .243's and .308's, '06, etc. Oh, and 300 RUM's flinging heavies, too. My success formula may be different than others, as are my workouts. I tend not to argue with what I see as success.Man you like to carry the weight. I don't think you were using a heavy enough bullet on that 100lbs Antelope either. Or did you wanted a workout.
