1.125” barrel weight

[Lachlan]

Hey all,

I’ve got a quick question, hopefully someone can help!

I’m just adding up the weight for my F Open rifle. I’ve got everything except barrel, which Maddco is a few months of making, so thought I’d prepare to see how much weight I have to play with, wether I need a weight system in the butt to add weight, or if I’ll be over and run a 30” instead of the planned 32”.

So, if anyone has weighed their 1.125 STRAIGHT tapered barrel, 30 or 32”, I’d be interested to know. Bonus points If it’s chambered in 284W!

[macguru]

I did it as a math problem, since I cant be bothered unscrewing my 31" barrel (7mm) and if SS is 7.93g/cm3 them a
30" barrel weighs 3.64kg,
and a 32" barrel weighs 3.88 kg , allowing for the hole in both cases. BUT not allowing for the chambering so minus a few grms... so these figures might be a few% high.

I'd be interested if i'm close when people check their actual barrel weights

[PeteFox]

A 7mm, 1.25" parallel x 32", chambered in 284W, weighs 4.6kg,

The same barrel to finish at 32", before threading, chambering and shortening/crowning weighs 4.9kg

Pete

[macguru]

I think he was asking about a 1.125" barrel, not 1.25"

[AlanF]

I think he was asking about a 1.125" barrel, not 1.25" .... boy that sure is heavy !

I'm not so sure - who uses 1.125" parallel for 7mm in F-Open?? That implies a 1.125" reinforce. Making the 10Kg weight is not usually a problem with 1.25"parallel.

So if it is 1.25" then I calculate 4.46Kg for a 30" and 4.76Kg for a 32" (using 7930 Kg/cu m, 284 Win, Barnard thread).

For 1.125"(?) the figures would be 3.58Kg and 3.82Kg respectively.

[macguru]

yes, that sounds about right for the OP question, after subtracting the chamber etc your figures are about 60g lower

[Lachlan]

1.25!!! Sorry, typo on my end! Thanks for those numbers, I’ll do some weight and adding and hopefully I’m all good!

Thanks

[Shobby]

1.25 inch Barrel approx 140grams per inch.