375 Ruger Twist???

Going to have a 375 Ruger barrel made for my Defiance action for a upcoming brown bear hunt and thinking about doing a 10 twist. Looks like most factory rifles are 12 twist. Am I screwing up with a 10? I plan to shoot 300 grain Nosler Partition or 300 grain Barnes TSX.

Colin78 said:

Going to have a 375 Ruger barrel made for my Defiance action for a upcoming brown bear hunt and thinking about doing a 10 twist. Looks like most factory rifles are 12 twist. Am I screwing up with a 10? I plan to shoot 300 grain Nosler Partition or 300 grain Barnes TSX.

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.375 Ruger is in my shortlist for my next build, and it will be 1:10" or faster.

^^^^^^^
The 10 won't hurt you with lighter bullets, and leaves the door open for heavier.

My opinion is the increase helps with bullet performance.

I built my 375-416 Rigby Improved with a 10" twist, not for hunting, but target bullets in mind.
However, using the 300g Accubond, I am very glad I chose that 10" twist, even with Barnes, the extra twist shows enhanced terminal performance and devastating wound channels. Wish both my 375H&H and 375 Weatherby were twisted to 10" now.
The 260g Accubond also likes the faster twist.

Cheers.

Thanks guys, sounds like 10" is what I want. I'm going to order it Monday. Now just gotta play with contours to get the weight where I want it. Stock is for a sendero so I might just go back with Carbon which is what it currently is in 300 PRC. Finish weight with carbon is just under 9lbs with scope, and ammo. I'd like to be at about 9 to 9.5 for recoil reasons but don't want it too heavy that I don't want to pack it up and down the mountains either.


I love how easy it is to just switch barrels with the prefits that are available now a days.

I have a 375 barrel on order right now, almost same scenario. Rebarreling a 300 PRC parent case build to 375 Ruger for a specific hunt. I went with an all steel, 10 tw for 260-300 gr projectiles with the 270 Hammer & Barnes being top of list. If I can get hands on some Accubonds or Partitions I'll try those as well.

What barrel length are you going with @Colin78 ?? Leaning towards 20-22" here.

KH_Outdoors said:

I have a 375 barrel on order right now, almost same scenario. Rebarreling a 300 PRC parent case build to 375 Ruger for a specific hunt. I went with an all steel, 10 tw for 260-300 gr projectiles with the 270 Hammer & Barnes being top of list. If I can get hands on some Accubonds or Partitions I'll try those as well.

What barrel length are you going with @Colin78 ?? Leaning towards 20-22" here.

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My plan has been 22" but last night I thought about going up to 24". You know all those random thought when you can't sleep. Lol I won't be shooting suppressed, not buying a can just for this hunt, so I'll be saving 6" there. And with the possibility of a wolf at longer range the extra velocity for a flatter trajectory would be nice.

Colin78 said:

My plan has been 22" but last night I thought about going up to 24". You know all those random thought when you can't sleep. Lol I won't be shooting suppressed, not buying a can just for this hunt, so I'll be saving 6" there. And with the possibility of a wolf at longer range the extra velocity for a flatter trajectory would be nice.

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Definitely no immediate plans for a suppressor here either! I'm using an all steel blank so we can finish it at whatever I decide. 20" is handy... 22" balances nice but still handy... 24" has more velocity.. Decisions, Decisions!! But fortunately the 375 Ruger has a little extra velocity to start with over an H&H. Food for thought, Gunwerks finishes their 375 Rugers at 21", and a friend of mine tapped a wolf at 450-ish yards last year with his 375 Ruger using 281 hammers. So I doubt you'll be limited by a 22" as best all around. Kinda where I'm at also.

KH_Outdoors said:

Definitely no immediate plans for a suppressor here either! I'm using an all steel blank so we can finish it at whatever I decide. 20" is handy... 22" balances nice but still handy... 24" has more velocity.. Decisions, Decisions!! But fortunately the 375 Ruger has a little extra velocity to start with over an H&H. Food for thought, Gunwerks finishes their 375 Rugers at 21", and a friend of mine tapped a wolf at 450-ish yards last year with his 375 Ruger using 281 hammers. So I doubt you'll be limited by a 22" as best all around. Kinda where I'm at also.

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What scope are you planning to use?

Using the Nightforce NXS 2.5-10x42 right now and absolutely love every aspect of that scope for a dangerous game rifle except... its just a hair short for a long action. If I could bring it back just 1/8-1/4" more it would be perfect. It's just great in every other aspect I "deal with it". Here's a pic below, and for reference its a Lone Peak Fuzion action with the split rail Alpine Port configuration, Hawkins Ultralight rings. Also I should add, my LOP is 13 & 3/4", so that attributes to my dilemma.

Very nice. I will need to get something different. All my current scopes start at 4 and go up from there. The action I'm building this with currently has a 4-24 vx6hd. I've been looking at that one, the NX8 2.5-20, and the VX6hd 2-12.

I think you'll like the VX6's over the NX8 2.5-20 for your intended use. I may switch to the VX5 3-15X44 or one of the VX6's eventually. Despite the NF being more bombproof.

That NX8 2.5-20 had some of the worste low light performance I've experienced from any rifle scope. I struggled with it on many occasions. If you're building a bear rifle then low light performance can be critical depending on when you're going. Also presents the same short tube issues as my NXS 2.5-10x42.

For spring bear, it can be a non issue with longer daylight hours in Alaska. In late May you could have nearly 24 hrs of shooting light dependingon location. But for Fall bear, you'll have actual daylight/darkness hours, and the big bears are almost always moving right at dusk it seems.

KH_Outdoors said:

I think you'll like the VX6's over the NX8 2.5-20 for your intended use. I may switch to the VX5 3-15X44 or one of the VX6's eventually. Despite the NF being more bombproof.

That NX8 2.5-20 had some of the worste low light performance I've experienced from any rifle scope. I struggled with it on many occasions. If you're building a bear rifle then low light performance can be critical depending on when you're going. Also presents the same short tube issues as my NXS 2.5-10x42.

For spring bear, it can be a non issue with longer daylight hours in Alaska. In late May you could have nearly 24 hrs of shooting light dependingon location. But for Fall bear, you'll have actual daylight/darkness hours, and the big bears are almost always moving right at dusk it seems.

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Good points. I have a few of the vx6's and they've never let me down. Probably go that route.

Colin78 said:

Good points. I have a few of the vx6's and they've never let me down. Probably go that route.

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A VX6 or VX5 with a custom scope turret would be about the perfect solution in my opinion for a 0-500 yd gun like these