Spike Camp

barrel length

barrel length
« on: December 13, 2017, 08:01:07 PM »
 I have a 26 in 300 weatherby mark v.if I go to a 24 inch vanguard in 300 weatherby how much will I loose in speed of a 180 grain bullet between the difference in the 2 inches of barrel length?
nick

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Re: barrel length
« Reply #1 on: December 13, 2017, 08:10:20 PM »
My guess would be 60-80 fps, personally I wouldn't worry about it. My 15" 308 win pistol kills deer just as dead as my uncles 24" 308 rifle, Welcome to the Nation!
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224KING

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Re: barrel length
« Reply #2 on: December 14, 2017, 01:39:12 AM »
The deer in your area will have numerous parties because you are hunting with such a lesser rifle.

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Re: barrel length
« Reply #3 on: December 14, 2017, 05:45:52 AM »
thank you for your time on this matter
gary b

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Re: barrel length
« Reply #4 on: December 14, 2017, 09:33:07 AM »
Depending on the powder, I can get my 300 Roy with 180 grain bullets to have muzzle velocities anywhere from 3,060 to 3,224 FPS with a 24” barrel. Accuracy is smaller than an inch at 100 yards on four different loads—-RL-19, H-4831, H-1000 and the discontinued W-780.
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Re: barrel length
« Reply #5 on: March 11, 2018, 07:51:20 AM »
Depending upon load, I would say 30-50 fps per inch you are losing. If you are taking shots within 400 yards, it won’t make a difference in performance. Just be sure to re zero and review your ballistic table for the new barrel length. I have started carrying a mark v with a 24 in barrel rather than a mk v with a 26 in barrel the last few seasons, and it’s amazing at how much more maneuverable the 24 is with just being 2 inches shorter.

Re: barrel length
« Reply #6 on: March 12, 2018, 10:45:05 AM »
not much, and even less with the 340wby or 375wby.

also with heavier bullets, the drop in speed is less.

so a 300wby shooting 200grs will lose less fps than a 165gr bullet.

i think in a 300wby I'd probably want a 26" barrel, but 24 wouldn't be a big deal.

in a 340wby I'd want 24" and not 26", one day I'll cut my down to 24 or build a custom etc... or rebarrel.

224KING

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Re: barrel length
« Reply #7 on: March 13, 2018, 06:55:43 PM »
It's all about the bore capacity.A cartridge that is really over bore capacity loses more FPS in a short barrel than a cartridge that is under bore capacity. It needs the longer barrel to shine because it's still burning powder.Hence the words over bore capacity.The longer the barrel the better.The longer the barrel the more bore capacity you have.
Sorry... Yesterday was the last and final day for any and all complaints whatsoever.

I try to avoid temptation unless I can't resist it.

Everyone has a photographic memory.Some just don't have film.

eford

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Re: barrel length
« Reply #8 on: March 15, 2018, 08:22:37 AM »
When the day comes to rebarrel my 300 Roy, I'm going with a 26" barrel and a muzzle brake. The brake is simply for the ability to keep the muzzle jump down some and also for if I want to put a suppressor it later, I won't have to take off the barrel to have it threaded.

The 26" barrel is in theory not as accurate as a shorter one of equal contour when shooting the same load. I see the longer barrel as a velocity changer. Who gets a 300 Weatherby to shoot it at the speeds of a hot-loaded 30-06? Not me! I have a 300 Roy because I want the extra reach.
Of all the gin joints in all the towns in all the world, she walks into mine.

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Re: barrel length
« Reply #9 on: May 29, 2018, 01:57:02 AM »
I am new to the nation.  Why are there no 26 in barreled 240 Weatherbys?  I had a 26 in 240 years ago and sold it because the barrel would heat so quickly, I spent more time waiting for the barrel to cool off  I did shoot it.  Anyways looking to purchase another 240, but want a 26 in, and it looks like Weatherby doesn’t make one unless I am missing something...

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Re: barrel length
« Reply #10 on: May 29, 2018, 11:01:40 AM »
Just sent you a PM
Sorry... Yesterday was the last and final day for any and all complaints whatsoever.

I try to avoid temptation unless I can't resist it.

Everyone has a photographic memory.Some just don't have film.