400 mod bb

[PRSDietitian]

Are 400modbb barrels worth the extra $250 over the cost of a 416 blank from bartlein?
Trying to procure a 25 cal 400modbb blank for a potential build in the near future and curious if the juice is worth the squeeze in terms of barrel life increase.

 

[KnowNothing256]

I’m still running my first one, jury’s out.

But I’ll say that it didn’t seem to finish breaking in until about 500 rds; I’d have to go back and check my records, but my MV kept increasing beyond the typical 200 or so.

If I get 50% more life out of it, then perhaps it’s worth it. You pay 50% more for the blank, but no cost increase for the smithing.

On the other hand, if I gotta spend 250 more rounds breaking it in, that’s a mild downside. Yes those can be training or club match rounds, but it’s an extra factor.

 

[oldrifleman]

I like mine. I only have about 600 rounds on on my older one and 200 on my new one, both are very accurate.

 

[PRSDietitian]

if it can get like 3k out of a 25 creed ar-10 barrel with this, i'd be very pleased

 

[TRG65]

I have one in a cf wrapped barrel. I had that chambered in 7mm RM. I don't have many rounds on it, but it gives the best accuracy of all the rifles in my safe. That is being compared against other bartlein, rock creek, and hawk hill. I just ordered another for an NRL Hunter open light build.

 

[mbeavers1]

I'm over 2000 rds on a 6BR running at 2830fps. Theres fire cracking and it gathers a lot of copper but still hammers.

 

[Baron23]

Are 400modbb barrels worth the extra $250 over the cost of a 416 blank from bartlein?
Trying to procure a 25 cal 400modbb blank for a potential build in the near future and curious if the juice is worth the squeeze in terms of barrel life increase.

Wow, prices have gone up, I see (and fuck you Biden).

2 1/2 years ago, MTU in 400modbb was $370 for base barrel and $200 up charge for that steel.

It shoots fine but I only have 1,700 rounds on it so I have no idea yet if the up charge results in any benefit.

 

[ruger35]

Like others have mentioned I found it took 4-500 rounds for the barrel to speed up. I’m 8-900 rounds in on a 6.5CM so I’m hoping it keeps going. Like you, I’m hoping to get more life but only pay smith fees once. Have a 6GT barrel in Modbb as well but it doesn’t have many rounds on it.