Load data for .257 Weatherby

[muleman]

I have all the Nosler Data but #6 and#7 seem not have RL25 data for the 110AB. If one of you kind gentleman could run a QL query I'd greatly appreciate it. Thanks
Scott
257 Weatherby
110 ab
RL 25
Fed215M primer
COAL 3.305
case cap. 81gr of water
31" barrel

 

[wbyfan1]

Scott,

Sorry. I don't have the QL data you requested, but I think you're on the right track with RL-25 and the 110 AB. It's been the most accurate powder, on average, in both of my 257's. Really works well with 115-120 gr bullets. If you have any H-1000 laying around, give that a whirl with the 110 AB's.
It's was a skosh more accurate than the RL-25 for me.

Good luck. Sounds like you have a nice rig to play with.

 

[SJB358]

I have all the Nosler Data but #6 and#7 seem not have RL25 data for the 110AB. If one of you kind gentleman could run a QL query I'd greatly appreciate it. Thanks
Scott
257 Weatherby
110 ab
RL 25
Fed215M primer
COAL 3.305
case cap. 81gr of water
31" barrel

Here is what I get Scott. Let me know if you need anything else..

Cartridge : .257 Weath. Mag
Bullet : .257, 110, Nosler AccuBond 53742
Useable Case Capaci: 78.378 grain H2O = 5.089 cm³
Cartridge O.A.L. L6: 3.305 inch = 83.95 mm
Barrel Length : 31.0 inch = 787.4 mm
Powder : Alliant Reloder-25

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 79 56.80 2959 2139 31802 9955 98.8 1.737
-18.0 81 58.22 3029 2241 34023 10151 99.4 1.693
-16.0 83 59.64 3098 2344 36405 10321 99.8 1.651
-14.0 85 61.06 3166 2448 38953 10462 100.0 1.602
-12.0 87 62.48 3233 2553 41685 10576 100.0 1.553
-10.0 89 63.90 3299 2659 44610 10684 100.0 1.506
-08.0 91 65.32 3364 2765 47754 10788 100.0 1.461
-06.0 93 66.74 3428 2871 51124 10890 100.0 1.418
-04.0 95 68.16 3492 2978 54714 10989 100.0 1.376
-02.0 97 69.58 3554 3085 58524 11085 100.0 1.336 ! Near Maximum !
+00.0 99 71.00 3616 3193 62585 11177 100.0 1.298 ! Near Maximum !
+02.0 101 72.42 3677 3302 66915 11267 100.0 1.261 !DANGEROUS LOAD-DO NOT USE!
+04.0 103 73.84 3737 3411 71536 11352 100.0 1.226 !DANGEROUS LOAD-DO NOT USE!
+06.0 105 75.26 3797 3522 76470 11435 100.0 1.192 !DANGEROUS LOAD-DO NOT USE!
+08.0 107 76.68 3857 3633 81743 11514 100.0 1.159 !DANGEROUS LOAD-DO NOT USE!
+10.0 109 78.10 3916 3746 87382 11588 100.0 1.128 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 99 71.00 3730 3399 75919 10828 100.0 1.203 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 99 71.00 3441 2892 49620 11689 100.0 1.427

 

[muleman]

Thanks Scotty!
My redneck math wasn't that far off. I thought max would be around 72gr. I'll take 3600fps with an AccuBond! I wonder if it would live through a Jug test? I think a 125-130gr ABLR would be awesome in this rifle.
Scott

 

[Oldtrader3]

I use the 110 AccuBond in my .257 Roberts which certainly is not a Weatherby but shoots 3/4 inch groups at 3140 fps in my Browning High Power action. I would imagine that it would be most awesome in a Mark V .257 Weatherby!

 

[wbyfan1]

Thanks Scotty!
My redneck math wasn't that far off. I thought max would be around 72gr. I'll take 3600fps with an AccuBond! I wonder if it would live through a Jug test? I think a 125-130gr ABLR would be awesome in this rifle.
Scott

Don't know what it would do at 3600 fps, but here's what it looks like at 3450. Penetrated 4 milk jugs from 30 yds and weighed 59.2 grains. Barnes 80 TTSX at 3750 on the left of the AB, went 5 jugs(74.0). 115 BST at 3450 to the right of the AB, went 3 jugs(53.2).

 

[SJB358]

The Noslers look real good! Dang. That 115 BT holds up real well.

 

[DrMike]

I don't believe I'd want to be hit with any of those bullets. They did hold up well.

 

[BigBoreDan]

Dead deer with any of those for sure...

If the shooter does his part and takes into account what type of bullet he is using and the game he is shooting at any bullet out of a 257 can and will be amazingly effective. If you read the Weatherby book Roy took a surprising array of game with the 87gr. Hornady which is still a available today but often overlooked.

 

[FOTIS]

I killed a muley buck 2 years ago with a 110 AB at 3550 fps with RL 25. Buck was 40 yards away. Double shoulder shot. Full exit. No issues.
This was from a WBY 257 ultralight.

 

[Horsethief]

Using 68.5gn of RL-22, Fed 215 primers, and seating the bullets so that they were as long as the magazine would allow gave me the most accurate groups with the 110gn AccuBond in my 257 Wby Mag.

 

[muleman]

I've got 120gr PTs and 110gr ABs loaded with IMR7828 and RL25 ready to go next time I shoot. Can't wait to send these down a 31" barrel.
Scott

 

[DrMike]

Thirty-one inches, eh? If you miss, you should be able to swing the rifle and swat them with it, Scott.

 

[muleman]

Thirty-one inches, eh? If you miss, you should be able to swing the rifle and swat them with it, Scott.

Mike,
I was thinking of a adding a bayonet lug....... Just in case. :grin:
The rifle came that way. It is a true bean field rifle. I'm thinking of cutting it down and recrowning it. But before I do I just wanted to see what it'll do.

Scott

 

[FOTIS]

31" barrel? Full choke?

 

[muleman]

31" barrel? Full choke?

Well I haven't shot it yet. I'm sure the first shots will tell me if I'm shooting groups or patterns! :grin:
Scott

 

[DrMike]

It is a true bean field rifle. I'm thinking of cutting it down and recrowning it. But before I do I just wanted to see what it'll do.

Scott

Actually, I'm with you. I'd be inclined to see what it does before I did any surgery on it. It is possible you could be in for a pleasant surprise.