26 May 2012, 08:44
matt salmOptimum barrel length?
I've built several 300 RUM's for myself and others for long-range rigs. So far I've stayed between 27-30". My brother-in-law's 300 RUM on a Mato action is 27", my RUM is 30". With the same load (94gr Retumbo) and a 200gr Nosler accubond I get right at 3250fps, the 27" barreled rifle delivers something around 3145 if I remember correctly. It does a good job and has killed a few elk at 850 and one mule deer at 1180. The Nolser AB has performed very well at those distances for penetration and expansion.
17 June 2012, 06:55
jwp475quote:
Originally posted by drewhenrytnt:
Now that I have decided to stay with 300Rum, what is in your experience the optimum barrel length( 28, 30, 32)to make use of the powder capacity of the RUM case?
I plan on shooting 200-240gr bullets or at least bullets that length. Cutting edge makes pure copper match bullets that I find appealing.
I am assuming 1-10. Preferences on makers? Does cut rifling really hold any accuracy potential over button? So far I have considered Hart, Lilja, and Broughton. Am willing to consider Krieger and Pac-Nor.
How many groves? 3, 6, 8?
Thanks.
Andy
I have 300 Rum with Barrels from 26" to 30". I like 30 on a dedicated long range rifle, but 26" will produce good velocity
I like Krieger and Rock Creek barrels and that is what I use
17 June 2012, 12:41
N E 450 No2Fot a strictly/mostly range rifle I would go with a 32". That would allow you to set the barrel back a few times after the throat gets burned out.
For a strictly hunting rifle I would go with a 28". That would allow you to set it back once or maybe twice.
After all how many rounds do you think you will get out of a barrel, before it needs to either be set back or replaced with a 3oo RUM???