I just bought a Sako 75 SSsyn in 7mm RUM I'm planning on loading the 120gr LazerHead by Lazzeroni. Does any one have any data or opinions

The 7 RUM is highly overbore even with 160 gr Bullets. I wouldn't bother buying more than a few hundred of the lazerheads because your barrel isn't going to last much longer than that with as much powder as you'll need to get that light of a bullet to work in a 7 Rum. Good luck.
My M-75 7 Rum shot 3/4 Minute at 200yds with 160gr Accubonds and or Partitions..........DJ

That.s definately putting it into perspective. Just get it rebarreled to 375 RUM later on and then it won't be so overbore. Don't forget to get the 300gr cup points from North Fork. That is good medicine for any antelope around these parts! Just kidding...

This may seem like a silly question, but can you have the same barrel simply reamed out (or whatever the appropriate term is) to a larger bore? I have a 7RUM that I had a larger contour Krieger barrel put on and I would be interested in having a 338RUM or 375RUM instead.
Thanks.

quote:

Originally posted by 257wby:
This may seem like a silly question, but can you have the same barrel simply reamed out (or whatever the appropriate term is) to a larger bore? I have a 7RUM that I had a larger contour Krieger barrel put on and I would be interested in having a 338RUM or 375RUM instead.
Thanks.

Yes you can. Check into a article in Rifle magazine by John Barsness on "Freshening a Bore". I can't remember off the top of my head the name of the Smith's that do rebores but there are a couple that do good work. A buddy of mine has had a few done with very good results, and it was a good deal cheaper then rebarreling and rechambering..............DJ

Thanks. I'll have to look into that. I don't think my barrel will last a whole lot longer. It was fun while it lasted.

Yes, reboring can be done, but I would rebarrel. It may cost a bit more but you are likely to get a better result.