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#188444 - 01/07/18 01:29 PM Re: Ecnchore barrel suggestions [Re: GG]
GG
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Registered: 01/24/11
Posts: 194

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How?s your accuracy with that set up? 100 200 yards? MGM said their test barrel was somewhat inconsistent but all I have ever heard was good things from that round.

If I get two 460s that could be a reason to reload. I have actually kept all the casing I have been shooting from the other gun in the event I start reloading. Prob have 200. I do have to say that the pressures of the 460 scare me. I did split one case in the past.

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#188446 - 01/07/18 02:31 PM Re: Ecnchore barrel suggestions [Re: GG]
Zee
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Registered: 03/23/14
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Mine is an MGM barrel as well. It shoots MOA at 100 yards and the furthest shot on game has been right at 130 yards so far.
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"To Hell with efficiency, it's performance we want!" - Elmer Keith

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#188449 - 01/07/18 02:45 PM Re: Ecnchore barrel suggestions [Re: Zee]
Zee
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Registered: 03/23/14
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"To Hell with efficiency, it's performance we want!" - Elmer Keith

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#188456 - 01/07/18 09:57 PM Re: Ecnchore barrel suggestions [Re: Zee]
karl
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Registered: 01/12/15
Posts: 522
Loc: Minnesota

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Hey GG
Lots of good advice given here. Here are my $0.02
1) 100-150 yards is not difficult. Your 30-30 barrel should be capable of deer and moderate hogs out to that range with the right load/bullet.

2) while there are lots of great cartridges mentioned, if you want to go much past 200 yards, you will want to make sure that the combination you choose is up to the task (muzzle velocity and bullet combination in a factory load)

For example. I'm playing with a striker in 308 with a 15" barrel. Shooting the same bullet that I chronoed in a friends rifle (~26" barrel I think) I drop from 2729 fps to 2476 fps with a 150gn FMJ). If I was shooting the 150gn barns TSX in a factory load and got the same velocity (2476fps), then ballistics calculators predict that I drop below 2000 fps right about 210 yards. I'm not sure what the minimum velocity is for that bullet, but most spitzer (barnes included) have minimum recommended velocities of 1800-2000 fps). I wouldn't use that load past 200 yards to avoid poor terminal performance.

3) Now, if you hand load, You can load a lighter for caliber bullet, achieve a higher muzzle velocity and increase your range a bit. If you go too light, then the poor BC bites you in the butt. You can also choose bullets that have lower minimum velocity requirement (look at those bullets used in 300 black out or 458 socom for a start). Admittedly, this is easier if you hand load or identify an available factory loading before you settle on a cartridge/caliber.

4)My last thought on the subject is not so easy for me to articulate concisely. For a given maximum chamber pressure, the muzzle velocity of a bullet goes up with decreasing bullet weight. It also goes up with increasing bore diameter (it also goes up with barrel length, but we are on a pistol forum so won't consider that). The problem is that both of these methods of increasing muzzle velocity reduce the bullet's ballistic coefficent so it sheds energy faster. In the few situations where i've sat down to work these comparisons (exclusively with Barnes bullets and suggested minimum MV from the factory), it seems that the maximum recommended range based on terminal velocity requirements remains relatively constant until I find a bullet with an exceptionally low minimum velocity requirement (hence my comment on the 300BO and 485. Handgun loads in a break action pistol are another good solution. Some times you find your self in the situation of driving a bullet too hard so it breaks up more then you would like).

You've got a wealth of info already in this thread. For ranges under 150-200 yards, most of my thoughts above can be ignored0. If you want to go farther, do some investigation with recommended minimum velocities (email the bullet manufacturer) and a ballistic calculator and estimated achievable muzzle velocities before you make a decision.

Best of luck! Let us know what you end up with and how it shoots!

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#188483 - 01/09/18 05:36 PM Re: Ecnchore barrel suggestions [Re: GG]
karl
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Registered: 01/12/15
Posts: 522
Loc: Minnesota

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 Originally Posted By: GG

Anyone have any accuracy and real life experience with a 460 from a 15 inch ported barrel?


Missed this earlier
Short answer, is no, but long answer is I've got a 15" factory 45-70 barrel that I had a fish-gill break added to (effective barrel length now ~13.5") and launch 300gn bullets 1800fps and it is FUN to shoot. I could easily knock out 50 rounds at a session at the range. I have shot some of the buffalo bore +p 300gn Barnes loads and they clocked out at 2050fps. Those shot well, but not a fun to shoot. If I needed the power, I wouldn't hesitate to reach for those or develop something similar but it doesn't matter for the things I hunt.

I have a red-dot on it, but holes will still touch at 100 yards.
I think the 460 would be a winner in an encore (with a break or ports and or heavier barrel then the factory 45-70). I haven't run the numbers or know what bullet you shoot, but I would think a pointed bullet would get you a pretty good range.

Having 2 460's would be a good excuse to start reloading.


Edited by karl (01/09/18 05:38 PM)

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#188571 - 01/13/18 06:20 PM Re: Ecnchore barrel suggestions [Re: karl]
Ernie
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Registered: 01/18/04
Posts: 4922
Loc: Gillette, Wyoming

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243 Winchester, 6 Creed, 260 Remington, 6.5 Creed, 7-08, 308 Winchester.
All will work way beyond the distances mentioned.
If you are recoil sensitive or just want recoil to be very little (Like me) get a good muzzle brake.
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#188584 - 01/13/18 10:04 PM Re: Ecnchore barrel suggestions [Re: Ernie]
junebug
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Registered: 10/26/09
Posts: 2096
Loc: Bardstown ,Ky

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Guy tried to sell me a 16 in Gary Reeder Encore .375 H&H mag barrel with integral brake at the gun show today. $325 and it could have been mine. I declined,don't need that much fun!


Edited by junebug (01/13/18 10:05 PM)
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