6.5/06 Ackley twist rate???

[bronco_mudder]

I'm going to have a 6.5/06 Ackley Imp. built as a hunting rig. It won't be used for anything bigger than deer and caribou, and who knows, maybe the occasional black bear if it's what I decide to grab that day. So all you geniuses speak up and give me your thoughts about an appropriate twist rate. I'm planning on using bullets in the 130-140 grain weights. 130 TSX's come to mind as well as something like a 140 grain Partition, I'll settle on what I find shoots the best out of the finished rifle. Let me know your what chew tink.

Edit to add: What I had in mind was a 1:8 twist, crazy or no???

 

[boonerbuck]

I have one in my safe. It's a 1-9 I think. Have to look through my stuff. It's has a Pac Nor barrel on a T3. I had it built for a friend who has yet to sort out his PAL issues.

Mine for now.

 

[Ls2]

1 in 8, good for anything up to 160 gr

 

[bearhunter]

I have a couple of 6.5-06s. Both have 1-91/2 twists. neither will stabilise bullets over 140 grains. If you do get the AI built, there is very little gain over the standard 6,5-06. I'm not implying in any manner that there's anything wrong with your choice by the way, just a little extra info. If as you state above, you're going to hunt deer with that rifle, only use premium bullets such as Nosler partitions, Swift Premiums, Sciroccos or one of the others. I have had a nasty surprise with Hornady 140 grain Interlocks blowing up on a rib on entry. It seems that the bullet velocity at under 75 yards was just to fast. bearhunter

 

[oldbadger]

1:8.5 would likely be fine, but how about a gain twist? Many moons ago Catinthehatt and I had 6.5 WSM wildcats built on highwalls. we used gain twists from Ron Smith and those little rifles would stabilize everything that we tried through them! Also good for "neato" effect around the campfire.

 

[bronco_mudder]

1:8.5 would likely be fine, but how about a gain twist? Many moons ago Catinthehatt and I had 6.5 WSM wildcats built on highwalls. we used gain twists from Ron Smith and those little rifles would stabilize everything that we tried through them! Also good for "neato" effect around the campfire.

I must say that the gain twist has intersted me, but I've never used, or seen one. What kind of twist would a person look to use in one of Ron's barrels? Something along the lines of starting at 1:12 and ending up at 1:7.5? I'm not sure how what the ratio of the "gain" is, but are my numbers somewhere close to what Ron does?