6x45 re-chamber or re-barrel?

[subsonic]

I have a Savage 10 in 6x45 w/ a 1:12 Shilen match grade 24" stainless barrel that I can not achieve better than 1.25" @ 100 yards using Benchmark, H335, BL-C(2), H322 or H4895 with a 70gr SMK. I would like to use this rifle for light varmint hunting out to 300 yards. Can this barrel be re-chambered to .243 WIN or a necked up 22-250? Which one would give me the best performance and longest barrel life? Thanks for all your comments.

Ron

PS. I have all the parts to convert this rifle, it was originally a .308

 

[MGYSGT]

Can't make it a 22-250, the barrel is .243 not .22. Depending on how much of the fat part of the barrel is left. Might be able to cut and rechamber to .243. Go see a Gunsmith. Maybe that barrel just doesn't like 70 gr. bullets. Try another bullet.

Tom

 

[DCRYDER]

it would be very easy to rechamber it to a 243 or 6/250. but if you have a bad barrel then all you will be doing is keeping the 1.25" groups but with more velocity. if the barrel has a good crown then the 6x45 should easily shoot in the .4xx's or better. i would try to improve what you have now, and i would start with the bullet. give the 75gr vmax a try.

 

[stevec]

6x45 is a very accurate round, you should look at the crown.

Steve

 

[tenring]

How many pills down the pipe? My smith does not recommend a re-chamber if over 1200, because there will usually be substantial fire cracking. Before you do anything, get it borescoped.

 

[shortgrass]

Try some Win.748. Also, in my 6x45, primer selection makes one heck of a difference. And again, try a different bullet.

 

[alf]

Go with another bullet, you can't force feed it what you want to shoot.

I'd look at the 55 grain Ballistic Tip first. I've never not had that bullet shoot.

 

[subsonic]

Guys, thanks for your quick responces. I have not tried the 75gr Vmax bullets yet but I will and I do have about a half pound of 748. The barrel has about 500 rounds through it. I also have some Nosler 55gr spitzers that I tried also but will look at the ballistic tips too. The crown is good but if it does not improve.......

Ron

 

[shortgrass]

Winchester Small Rifle Primers have been the best 'match' for 748, at least in my rifle. PMCs' are the worst, Rem. is so-so, with the excellent results WSR has given I haven't even tried Federal primers. Shooting the 75g. V-Max or 80g. Blitz.