Can anyone confirm the twist rate of the standard ghost 28 inch “barrel kit” in .22? AOA is just saying “BRK doesn’t tell us so we don’t know”… is it 1:30? 1:17.7? Can’t find the info anywhere (other than speculation) Thanks much!
Brocock/BRK Ghost .22 28 inch barrel kit
- Thread starter greenbeans
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Nvmd, Jacob at AOA went out of his way to measure the twist rate for me and confirmed it’s 1:30 on the 28 inch 
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From reading comments by other members, the Ghost 28 inch barrel kit has shipped in both 1:17.7 and 1:30 twist rates. The 1:30 twist rate barrel is marked with a 6B stamped on the barrel near the transfer port. I have the 28 inch 1:30 twist rate barrel stamped with the 6B, and I double checked the twist rate using the very simple following method...
How to Determine the Rate of Twist in a Rifle Barrel Presented by Larry Potterfield of MidwayUSA
How to Determine the Rate of Twist in a Rifle Barrel Presented by Larry Potterfield of MidwayUSA
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Tried, the first answer was “BRK isn’t telling us the twist rates so we don’t know”. Jacob at AOA then went out of his way and measured the .22 they have in stock and it’s 1:30…
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Well what twist rate do you want? The .22 is the Fady K World Record barrel.Interesting… if someone knows where to get a 28 inch 17.7 let me know
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Exactly that one, 1:17.7. At least that’s what the standard barrel on the .22 Fady is supposed to be:
“Other than that, in keeping with Fady’s record-breaking approach, all other features are standard. These include a 20-point power dial; adjustable regulator pressure; carbon air bottle; BRK moderator; moveable Picatinny scope rail and the ability to accommodate a range of accessories such as adjustable butt pads and single shot loaders. The barrel is a premium Lothar-Walther with a 1-in-17.7" twist as standard. An optional accessory barrel with a 1-in-30" twist is releasing soon.”
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One thing in the Fady list of equipment. He used a DonnyFL Ronin moderator when he shot his world record match. There are pictures of him on the bench when he shot that match. He said that at the time he shot his world record match, he was not shooting for Daystate/Brocock. After his world record, he said he was approached by both FX and Daystate/Brocock, and he choose to shoot for Daystate/Brocock.
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I could be wrong, which is occurring more often the older I get, but is this 1:30 new to be released, the BRK Ghost slug barrel? Hope it’s finally finding its way to dealers so I can get .30 slug barrel finally.
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I would think 1 in 30 would not work for slugs as its too slow of a twist. 1-17 would probably be better for slugs as slugs need to spin faster than pellets. Aoa to me seems to have their heads where the sun don’t shine on the slug barrels
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Well the comments from above says the new 28” Barrel is 1:30. And the new barrel we have been waiting on is the slug barrel. .177 .22 with shorter barrels may need faster twist but the heavier the projectile and longer the barrel the less is needed. That’s what I have been seeing about twist rates. All I want confirmed is if the 1:30 is their new 28” slug barrel.
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AOA apparently now has the 1:17 (or had, a member here got one from them). That’s the slug barrel and it’s called “2B” as opposed to 6B. The 1:30 is the regular barrel, which will do fine with pellets but not with slugs.
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My 28” 177 barrel shoots 13 gr jsb slugs very well. @cavedweller had a post some where i believe that had part numbers for pellet and slug barrels but ive not been able to find it again.
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Thanks for the info. I mostly use my Leshiy 9mm 450mm for Canada geese management under 75 yards or so and my BRK .30 over that like on the other side of lakes. Been waiting for the slug barrel for more accuracy and fpe. The 44.75 JSB pellets work fine, but you how it is, always on the hunt for better latest greatest performance.
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Barrel length affects the ability to propel a projectile given the pressure and dwell of the pressure behind said projectile. Twist rate affects the spin rate and the ability to stabilize a projectile travels. The longer the projectile ( heavier ) the faster the twist rate is required to stabilize. Although 1:30 may work for some slugs. The 1:17 is much more suitable. Over spinning a pellet almost always results in spiralling when pushed too fast. Ted Bier from Ted’s holdover has a great video on an HW100 that has this exact problem.
Another major issue when shooting slugs is the sizing. This has been discussed in depth here often. When buying off the shelf slugs from whatever manufacturer we are limiting the performance by not matching the size of the slug to the barrel. Best performance is always found after sizing.
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