.270win Rebarrel

Slim01 · Jul 15, 2025

I'm going to rebarrel my .270win. It currently has a 20" barrel with a 1:10" twist. It will be used with lead and monoliths for plains game and deer out to 300 yards max. What length and twist rate would be best? Thanks.

mdwest · Jul 15, 2025

Generally speaking 1:10 and a 24” barrel are “standard” for a 270… some like a tighter twist for heavier bullets.. and some like a shorter barrel for mobility..

For me a 1:10 with a 22” is about ideal..

Flewis · Jul 15, 2025

If you go 1 in 8 you can shoot the new heavy bullets. They go up to 175 or a little higher.

Wyfox · Jul 15, 2025

With the new laws hitting the UK, it would be in your best interest to get a faster twist to shoot the mono-metal bullets. They normally shoot best in fast twist barrels and have more reliable expansion with the higher RPM.

Slim01 · Jul 16, 2025

I called the gunsmith I'll be using and he has 1:7.5" and 1:9" twists in stock but no 1:10". He's rebarrelling a lot of rifles to .270win with faster twists due to the proposed ban of lead ammunition.

rdog · Jul 16, 2025

Slim01 said:
I'm going to rebarrel my .270win. It currently has a 20" barrel with a 1:10" twist. It will be used with lead and monoliths for plains game and deer out to 300 yards max. What length and twist rate would be best? Thanks.

i have recently re barreled my Howa 1500 270 WIN, with a Pack nor 1-9 twist bbl slightly heaver profile than original cut to 25 inch long it shoots most 130 to 150 grain bullets into less than 1 moa for 5 shots its in a HS PRECISION stock, its maybe the most consistent easy to shoot rifles i own. I going on a special deer hunt with a old army friend next week its the only rifle i will take as it shoots so well using 130 grain Hornady CX bullets in Starline brass.

Bob Nelson 35Whelen · Jul 20, 2025

Slim01 said:
I'm going to rebarrel my .270win. It currently has a 20" barrel with a 1:10" twist. It will be used with lead and monoliths for plains game and deer out to 300 yards max. What length and twist rate would be best? Thanks.

@Slim01
If you have to rebarrel to 270 I would go with a new slow twist 1:8 barrel 24-26" long
This would allow you to get the best velocities and allow you to use some of the newer high BC projectiles.
OR
you could go the same route I went with my 270.
I rebarreled to the 35 Whelen. Will do everything the 270 will but with a bucket load more authority at all ranges and still carries 2,000fpe at 400yards. Can't go wrong with a Whelen.
Bob

Bob Nelson 35Whelen · Jul 20, 2025

rdog said:
i have recently re barreled my Howa 1500 270 WIN, with a Pack nor 1-9 twist bbl slightly heaver profile than original cut to 25 inch long it shoots most 130 to 150 grain bullets into less than 1 moa for 5 shots its in a HS PRECISION stock, its maybe the most consistent easy to shoot rifles i own. I going on a special deer hunt with a old army friend next week its the only rifle i will take as it shoots so well using 130 grain Hornady CX bullets in Starline brass.

@rdog
A special hunt requires a special rifle mate
Leave the 270 at HOME and take that lovely 350 REM mag of yours.
Ha Ha Ha Ha Ha
Bob

rdog · Jul 20, 2025

Bob Nelson 35Whelen said:
@rdog
A special hunt requires a special rifle mate
Leave the 270 at HOME and take that lovely 350 REM mag of yours.
Ha Ha Ha Ha Ha
Bob

Bob i have just re stocked the 350 with a Ruger laminated stock & have not got time to re sight before trip.

.270win Rebarrel

Slim01

mdwest

Flewis

Wyfox

Slim01

rdog

Bob Nelson 35Whelen

Bob Nelson 35Whelen

rdog

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