25/06 AI ?

saudst · February 28, 2016, 12:37 PM

I have a 1972 vintage Rem 700 BDL 25/06. The barrel was shot out and I rebarreled with a Shillen #4 couture 27". I was wondering what kind of velocity increase I could expect re chambering to A.I. I use it mostly for varmints. My go to load is 58.5 grns. IMR4831 and a 75grn. V-max. Any thoughts if it's worth it or not?
Thank you, Tim.

T. O'Heir · February 28, 2016, 01:02 PM

It's only about 100 or so FPS faster. Not a lot of AI 75 grain data available though. Barrel length and twist seem to matter a bunch.

jaguarxk120 · February 28, 2016, 02:21 PM

As I recall, P.O. Ackley said the 25-06 AI was not much improvement over the standard 25-06.

F. Guffey · February 28, 2016, 02:52 PM

Quote:

I rebarreled with a Shillen #4 couture 27".

27’ barrel has its advantage. I have the 25/06 Ackely chamber reamer. A couple of smiths got hold of a few rifles that belong to a long time friend. My opinion they screwed one up in the worst way. I got involved and removed all doubt. One came up with a barrel replacement for a 275 Weatherby built by my friend. I refused to install the barrel because it was shorter. My opinion the 257 Weatherby barrel had to be at least 26” long. If the barrel was shorter a 25/06 or a 257 Roberts would be a better rifle. I also have a 257 Roberts Ackley Improved reamer. I had rather have the 257 Roberts Ackley Improved than the 257 Wheatherby.

F. Guffey

old roper · February 28, 2016, 05:01 PM

I have 27" barrel on 280AI and 243AI and their is an increase but they were new barrel to start with. You going have barrel set back and new chamber cut and depending how many rounds fired may be worth having it done.

saudst · February 28, 2016, 08:37 PM

Thank you for your replies, I think for the chamber job and RCBS A.I. dies, the gain really isn't there. My varmit load is a 75grn. V-max @ 3840, I don't think 100-200fps. is doing me any service at all. I think I'll buy more powder and bullets with the money instead.

Thanks, Tim.

February 28, 2016, 12:37 PM	#1
saudst Senior Member Join Date: February 20, 2008 Location: Central Wisconsin Posts: 184	25/06 AI ? I have a 1972 vintage Rem 700 BDL 25/06. The barrel was shot out and I rebarreled with a Shillen #4 couture 27". I was wondering what kind of velocity increase I could expect re chambering to A.I. I use it mostly for varmints. My go to load is 58.5 grns. IMR4831 and a 75grn. V-max. Any thoughts if it's worth it or not? Thank you, Tim. __________________ Tim. "Fear of death will not prevent dieing, but it may prevent living".

February 28, 2016, 01:02 PM	#2
T. O'Heir Senior Member Join Date: February 13, 2002 Location: Canada Posts: 12,453	It's only about 100 or so FPS faster. Not a lot of AI 75 grain data available though. Barrel length and twist seem to matter a bunch. __________________ Spelling and grammar count!

February 28, 2016, 05:01 PM	#5
old roper Senior Member Join Date: June 11, 2007 Posts: 2,155	I have 27" barrel on 280AI and 243AI and their is an increase but they were new barrel to start with. You going have barrel set back and new chamber cut and depending how many rounds fired may be worth having it done. __________________ Semper Fi Vietnam 1965 VFW Life member NRA Life Member

February 28, 2016, 08:37 PM	#6
saudst Senior Member Join Date: February 20, 2008 Location: Central Wisconsin Posts: 184	Thanks. Thank you for your replies, I think for the chamber job and RCBS A.I. dies, the gain really isn't there. My varmit load is a 75grn. V-max @ 3840, I don't think 100-200fps. is doing me any service at all. I think I'll buy more powder and bullets with the money instead. Thanks, Tim. __________________ Tim. "Fear of death will not prevent dieing, but it may prevent living".

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February 28, 2016, 02:21 PM	#3
jaguarxk120 Senior Member Join Date: February 28, 2008 Location: Michigan Posts: 2,619	As I recall, P.O. Ackley said the 25-06 AI was not much improvement over the standard 25-06.