Thread: 270 gibbs

Has come about that I have the opportunity to get the BSA 270 reamed out to a Gibbs.
Whats the general opinion on it.
Q2. The full sizing die would need reaming too, is that a difficult jobby to do?


P.s. I'll have no lip out of you Toby!

Originally Posted by kidmac42

Has come about that I have the opportunity to get the BSA 270 reamed out to a Gibbs.
Whats the general opinion on it.
Q2. The full sizing die would need reaming too, is that a difficult jobby to do?


P.s. I'll have no lip out of you Toby!

270 Gibbs is great in 24"+ barrel, will give .270Wby performance, but with more hassle - case forming is an arse, dies are easily obtainable.

- More powder used per round
- More recoil-
- Case forming is a pain
- Real world velocity gain over .270 Win is no more than 200fps in the heaver projectiles (and you load it hard to get there!)
- Resale value is toast

Better of with a 7mm Mag if you want to drive heavier projectiles fast- or just leave your .270 as is, 110gn TTSX at 3300fps is fast enough if it is speed you want.

Cheers mate, that says it all really. Sounds like a lot of fluffin around for small gain

It's a wild cat... so yes

Originally Posted by Timmay

It's a .270... so no

Right on!

Hi kidmac,
Just wondered who has the reamer etc for 270 gibbs please?
Cheers Mark.

I think mark at desert guns in Cromwell has a Gibbs reamer still.

No one Ackley's a 270 for that reason. No real gain. 270 driving 110gr Barnes is lethal. I loaded plenty for dude who flattens stags up Tuai.

What powder behind that @TeRei?

Originally Posted by TeRei

No one Ackley's a 270 for that reason. No real gain. 270 driving 110gr Barnes is lethal. I loaded plenty for dude who flattens stags up Tuai.

I know that the accepted wisdom is 'no gain on 270 Ackley' but considering the 280 AI is quite a big improvement on standard, it seems likely that if someone already had a rifle with a fast twist barrel, with new powders and heavy high BC pills the 270AI should work ???

Fast twist .270s with custom chambers are doing just under 2950 FPS with 170 gr projectiles. That’s no slouch.

Originally Posted by Moa Hunter

I know that the accepted wisdom is 'no gain on 270 Ackley' but considering the 280 AI is quite a big improvement on standard, it seems likely that if someone already had a rifle with a fast twist barrel, with new powders and heavy high BC pills the 270AI should work ???

even with std twist barrel......faster is faster no matter the twist...... I cant see 280AI dies with .277 expander ball being far off the mark either...all depends on chamber I guess.

Originally Posted by charliehorse

What powder behind that @TeRei?

2213SC.