Would like to put a 24" barrel on a Marlin XL7 .25-06
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rcmodel
Member in memoriam
Then you need at least a 26".
The velocity difference between a 22" & a 24" is not worth the cost and messing with it.
BTW: I cut my 26" 25-06 to 22" to make it possible to get in & out of the truck in a hurry with it while chasing coyotes.
rc
Thanks, rc. I guess you will only be getting about 140 fps more from a 24" vs the 22".
I am getting 2900+ fps with a 115 grain Combined Tech Ballistic Tip. It does the job, but puts the .25-06 into .257 Roberts territory.
I have Chrony the 100 BT, and I am getting 3100 fps. Which is pretty good. I am not suffering from accuracy issues. It actually shoots under MOA @ 200 yards. Might be best to leave it alone.
I am getting 2900+ fps with a 115 grain Combined Tech Ballistic Tip. It does the job, but puts the .25-06 into .257 Roberts territory.
I have Chrony the 100 BT, and I am getting 3100 fps. Which is pretty good. I am not suffering from accuracy issues. It actually shoots under MOA @ 200 yards. Might be best to leave it alone.
rcmodel
Member in memoriam
Nothing you shoot with it will notice the missing 140 fps!
.257 Bob territory?
Not hardly, without stretching things in the Bob.
rc
.257 Bob territory?
Not hardly, without stretching things in the Bob.
rc
100 grain .257 roberts is 3000 fps. isn't it?
115 grain 22" .25-06 with 4350 is 2980 from my rifle.
100 grain .257 roberts is 3000 fps. isn't it?
100 grain 22" .25-06 with RL19 is 3100+ish from my rifle.
It looks to be in the same range give or take. I do not load for the roberts, but I have seen data for the 100 and 120 grain that seem similar to my figures above. Are those figures for the roberts stretching into hot loads?
I just saw that 117 grain standard .257 roberts is around 2650/2700 fps.. Okay. Maybe I was thinking of a .257 Robert Ackley Improved?
115 grain 22" .25-06 with 4350 is 2980 from my rifle.
100 grain .257 roberts is 3000 fps. isn't it?
100 grain 22" .25-06 with RL19 is 3100+ish from my rifle.
It looks to be in the same range give or take. I do not load for the roberts, but I have seen data for the 100 and 120 grain that seem similar to my figures above. Are those figures for the roberts stretching into hot loads?
I just saw that 117 grain standard .257 roberts is around 2650/2700 fps.. Okay. Maybe I was thinking of a .257 Robert Ackley Improved?
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adelbridge
Member
Eabco will put a savage barrel on it for not much over cost or new barrel.
http://www.eabco.com/savagebarrels.htm#Accuracy Barrels
It doesn't list .25-06 as a caliber they offer.
It doesn't list .25-06 as a caliber they offer.
You won't get 140 fps more velocity with a 24" barrel vs a 22" barrel. It will be closer to 40 fps and it is possible the 22" barrel you have might shoot faster than a longer replacement. Certainly not worth the cost.
Here are some ACTUAL results when barrels were cut and velocities recorded. They did not test a 25-06, but the similar 270 only lost 114 fps when cut from 27" down to 21". Only 27 fps when cut from 24" down to 22".
As a rule longer barrels do shoot faster, just not nearly as much as some believe. And 2" isn't enough to matter. If you are comparing 20" vs 26" then it matters. 22" vs 24" is just enough to change the guns looks and balance. Not enough performance to worry about. If you are not happy with the speed you're getting from the 22" tube, you need to look at 26"-30" barrels to see any measurable gains.
http://www.longrangehunting.com/forums/f19/short-barrel-magnum-velocity-19346/
Every barrel is different, I've seen over 100 fps difference betweeen barrels of equal length and seen a 2" shorter barrel shoot faster than a longer barrel on occasion because the difference in barrels is often greater than the gains of only 2" of barrel length.
Here are some ACTUAL results when barrels were cut and velocities recorded. They did not test a 25-06, but the similar 270 only lost 114 fps when cut from 27" down to 21". Only 27 fps when cut from 24" down to 22".
As a rule longer barrels do shoot faster, just not nearly as much as some believe. And 2" isn't enough to matter. If you are comparing 20" vs 26" then it matters. 22" vs 24" is just enough to change the guns looks and balance. Not enough performance to worry about. If you are not happy with the speed you're getting from the 22" tube, you need to look at 26"-30" barrels to see any measurable gains.
http://www.longrangehunting.com/forums/f19/short-barrel-magnum-velocity-19346/
Every barrel is different, I've seen over 100 fps difference betweeen barrels of equal length and seen a 2" shorter barrel shoot faster than a longer barrel on occasion because the difference in barrels is often greater than the gains of only 2" of barrel length.
Sav .250
Member
For the money involved..........really not much of a benefit.
adelbridge
Member
The reason I say 140 fps is because I am exactly 70 fps lower per inch with my 22" barrel compared to 24" barrel listed velocities. So for my rifle I know that in going to gain 70 fps per inch. At least with this Marlin barrel I have now.
This for every listed grain size be it 100 or 115 nosler BT.
This for every listed grain size be it 100 or 115 nosler BT.
.257 Roberts 100 grain is listed at 3100 fps.
Out of my 22" barrel .25-06 I am getting the same velocity. So in essence the .25-06 out of a Marlin XL-7 is a .257 Roberts. Is that not a correct assessment?
All things equal both having 26" barrels then there would be a 400 fps difference, but the 4" shorter barrel of a XL-7 really drops the performance of the .25-06.
I have gotten good kills using the 115 grain CT BT Winchester Supreme out of my rifle. I'd like to have the full potential of my rifle caliber. I didn't know much about the .25-06 when I bought it.
I went to get a rifle to hunt open pasture because that is where I had a chance to hunt a few years back. My choices at the very moment in time at the store was a .243 or a .25-06. I chose to go long action. I am in no way disappointed in the accuracy or performance of the rifle though. Great rifle.
Out of my 22" barrel .25-06 I am getting the same velocity. So in essence the .25-06 out of a Marlin XL-7 is a .257 Roberts. Is that not a correct assessment?
All things equal both having 26" barrels then there would be a 400 fps difference, but the 4" shorter barrel of a XL-7 really drops the performance of the .25-06.
I have gotten good kills using the 115 grain CT BT Winchester Supreme out of my rifle. I'd like to have the full potential of my rifle caliber. I didn't know much about the .25-06 when I bought it.
I went to get a rifle to hunt open pasture because that is where I had a chance to hunt a few years back. My choices at the very moment in time at the store was a .243 or a .25-06. I chose to go long action. I am in no way disappointed in the accuracy or performance of the rifle though. Great rifle.
GooseGestapo
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Although I'm a .257Roberts affectionado, I'm also going to side with NOT rebarreling the .25/06.
Indeed the difference between a 22" and 24"bbl is only ~70-90fps. Not the 140fps stated. Also, at the SAME pressures, the differnce between the .257Roberts and .25/06 is less than 100fps.
The difference between the 57mm case of the Bob and the 63mm case of the .25/06 amounts to about 8% difference in case capacity an not more than 5% velocity difference.
Kinda like "how many angels can dance on the head of a pin?"
Dosen't really matter.....
btw; my .257Roberts easily gets 3,150fps m/v from a 100gr bullet and 2,950 with a 115-117gr bullet. But is "happier" at 3,050 and 2,850. (46.5gr H4350; 45.0gr IMR4831).
If your Malin .25/06 is that accurate, you'd be crazy to remove the barrel.... Just "choot-it"...
Indeed the difference between a 22" and 24"bbl is only ~70-90fps. Not the 140fps stated. Also, at the SAME pressures, the differnce between the .257Roberts and .25/06 is less than 100fps.
The difference between the 57mm case of the Bob and the 63mm case of the .25/06 amounts to about 8% difference in case capacity an not more than 5% velocity difference.
Kinda like "how many angels can dance on the head of a pin?"
Dosen't really matter.....
btw; my .257Roberts easily gets 3,150fps m/v from a 100gr bullet and 2,950 with a 115-117gr bullet. But is "happier" at 3,050 and 2,850. (46.5gr H4350; 45.0gr IMR4831).
If your Malin .25/06 is that accurate, you'd be crazy to remove the barrel.... Just "choot-it"...
That doesn't mean anything. Every barrel is different and listed velocities are from factory test barrels with tighter toelrences than most commercial barrels. You could change to another 22" barrel and see 100fps more velocity from the same length barrel. You might buy a different 24" barrel and see a LOSS in velocity compared to what you are getting now.
There is simply no way to predict exactly how much speed will change when you change barrels, longer or shorter. The only way to know for sure is to chronograph your loads from a long barrel and re chronograpy as you cut shorter. Of course then you ruin your barrel.
But you can study the the results where others have done this and get a pretty good idea what would happen if you cut a barrel with a known velocity. This has been done repeatedly and results are posted on line. Most guns gain/lose around 15-25 fps for each inch the barrel changes.
And that varies with barrel length. You will see very little difference between 24 and 26" in most cases. The difference between 20" and 22" will often be much more. Rounds like the 25-06 and many magnum rounds will be on the high end closer to 25-30 fps. Rounds like a 308 are usually in the 15-20 fps range. The single greatest loss of velocity I have ever found credible documentation for was a 300 magnum that lost 35 fps when cut 1".
Deer_Freak
Member.
I would leave it alone. The gun shoots good now. If you ever want to sell the Marlin you will be challenged to recover your money. The barrel that came on it might be a challenge to sell.
I have been shooting coyotes with a 22 wmr using hornady vmax ammo. The coyotes are just as dead. I regret buying the vmax ammo. The coyotes were just as dead with CCI TMJ ammo.
I have been shooting coyotes with a 22 wmr using hornady vmax ammo. The coyotes are just as dead. I regret buying the vmax ammo. The coyotes were just as dead with CCI TMJ ammo.
I don't get why you keep shoving on me this 25 fps for each inch. When I have a chronograph, and have duplicated the fps my barrel looses by being a 22" barrel, and it is 70 fps per inch.
Winchester Supreme 115 grain Combined Tech is listed as 3030 fps from a 24" barrel. When I loaded 49.0 grains of IMR4350 with the same bullet I get 2890 fps. When I shoot that ammo through my rifle I get 2890 fps.
Do me a favor, and subtract 2890 fps from 3030. I would like to make sure you get the same as I do. I get 140.
I have tested RL-19 with the 100 grain BT. And the math is the same from the book. I get exactly 140 fps less than what they are listing. Please stop trying to correct me on what my rifle does when I have tested these numbers, and I would not be spouting off numbers just to use white space in the posting block.
Okay. So 24" might not make a big difference. You all say 26" for the true burn and velocity of the .25-06. Nice.
I like the pic. I have a pic floating around the computer disc of the stand and fence line where I shot those two deer side by side at 297 yards. The .25-06 did real well with that Winchester Supreme 115 grain Combined Tech.
I have another thread where I am wanted to AI one of my 30-30's. Must be to hot to shoot, and there isn't a season open. Only pigs, and I don't feel like getting eaten up with ticks and mosquito to kill the piggies right now. I guess I'll just shoot it until the accuracy goes. I have already changed to a Boyd's stock. The pepper laminated, and it looks great. The Boyd's is a little long for me. It needs to be cut back an inch or so.
Winchester Supreme 115 grain Combined Tech is listed as 3030 fps from a 24" barrel. When I loaded 49.0 grains of IMR4350 with the same bullet I get 2890 fps. When I shoot that ammo through my rifle I get 2890 fps.
Do me a favor, and subtract 2890 fps from 3030. I would like to make sure you get the same as I do. I get 140.
I have tested RL-19 with the 100 grain BT. And the math is the same from the book. I get exactly 140 fps less than what they are listing. Please stop trying to correct me on what my rifle does when I have tested these numbers, and I would not be spouting off numbers just to use white space in the posting block.
Okay. So 24" might not make a big difference. You all say 26" for the true burn and velocity of the .25-06. Nice.
I like the pic. I have a pic floating around the computer disc of the stand and fence line where I shot those two deer side by side at 297 yards. The .25-06 did real well with that Winchester Supreme 115 grain Combined Tech.
I have another thread where I am wanted to AI one of my 30-30's. Must be to hot to shoot, and there isn't a season open. Only pigs, and I don't feel like getting eaten up with ticks and mosquito to kill the piggies right now. I guess I'll just shoot it until the accuracy goes. I have already changed to a Boyd's stock. The pepper laminated, and it looks great. The Boyd's is a little long for me. It needs to be cut back an inch or so.
Lloyd Smale
Member
Personaly id use it like is. I doubt your lossing more then 100 fps and thats sure not worth wasting 500 bucks on a rebarrel. I allways chuckled at guys that say a 2506 is useless with a 22 inch barrel. You sure see lots of 270s with them. Sure a 24 or 26 inch barrel will give you more but is it worth it. I can about guarantee you that a 25-06 with a 22 inch barrel will outpace a 257 roberts even with a 24 inch barrel. Especially when using 117s and 120s. Like was said too theres no guarantee your going to gain a thing. My 300 wby markv with a 26 inch barrel is only about 50 fps faster then my old vanguard with a 24 inch barrel was with most loads and a couple loads i tried the 24 inch gun actually was a bit faster.
Deer_Freak
Member.
Eb1 you can kill coyotes a lot further with your 25-06 than 297 yards. We have had a pesky coyote that no one could kill. He has terrorized chickens and eggs all spring. I saw him in a field trying to get canadian geese eggs. I killed him 580 yards away with a Mosin Nagant 91/30. I was shooting a 203 gr Brown Bear bullet. Your 25-06 as is likely has more energy the the 7.62 x 54r at 580 yards. It really doesn't take a lot to kill a coyote.
I bought the 91/30 to leave in the barn for pests like that coyote. I finally came across some scrap melamine to build a locking cabinet for the mosin. It didn't take long for it to pay off.
I bought the 91/30 to leave in the barn for pests like that coyote. I finally came across some scrap melamine to build a locking cabinet for the mosin. It didn't take long for it to pay off.
Nice Shootin'. I am going to leave it the same. It is summer time. The Harley is running good. Nothing to change there accept oil and fluids as the miles pile up. There are zero hunting seasons open at this time. I have loaded the winter ammo, and I am just bored I guess.
Just looking for solutions where there are not any problems. :}
Just looking for solutions where there are not any problems. :}
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