I'm gotten really interested in a nice precision rifle lately and I'm considering 6mmbr. I want to use it from 600m to 1000m, (I have read there are "better" calibre's for these distance's but all in all I think 6mmbr is best for me) so I'm thinking 105-107 gr bullets with an 8 twist barrel. One thing I keep reading is to match your chamber to the bullet you will be using. But how do you decide? Do you pick one bullet and get it chambered to match that bullet, or does the chambering match a range of weights. I've tried researching the answer, but I'm not sure I'm asking the right question. I'm still very new to this precision stuff. Thanks for any help.
matching chamber to bullet
- Thread starter nbmonte
- Start date
ultimate_monkey
CGN Ultra frequent flyer
- Location
- victoria BC
what they are talking about is "free bore" which basicall put is the amout of space the bullet can stick out of the case before the ogive engages the lands..
if you have a chamber with to much free bore for a given weight of bullet you either 1)have a huge jump to the lands 2) seat the bullet WAY out and have to little in the neck, resulting is excessive run out.
if there is to little free bore, you shove the bullet way back in the case, and loose case capacity
personally, im a believer in no cutting corners. so i , decide on the type of shooting the rifle will be used for (bench, field etc) the bullet i want to use, make a dummy round, and for the amount it costs, have a custom, or modified reamer made. used to deal with PTG, but they have let me down, just started dealing with Manson, and from the customer service i received, to the actual product that arrived Dave is MILES agead of PTG
if you have a chamber with to much free bore for a given weight of bullet you either 1)have a huge jump to the lands 2) seat the bullet WAY out and have to little in the neck, resulting is excessive run out.
if there is to little free bore, you shove the bullet way back in the case, and loose case capacity
personally, im a believer in no cutting corners. so i , decide on the type of shooting the rifle will be used for (bench, field etc) the bullet i want to use, make a dummy round, and for the amount it costs, have a custom, or modified reamer made. used to deal with PTG, but they have let me down, just started dealing with Manson, and from the customer service i received, to the actual product that arrived Dave is MILES agead of PTG
backdoorsally
CGN Regular
- Location
- South East Alberta
PTG has been letting down a lot of people over the last year
paperslayer
Regular
- Location
- Chilliwack
not all guns shoot all bullets well, but I have yet to find a gun barrel that did not like Berger 105 VLD bullets. If you are having a gun built, your gunsmith will know all about what you need, If not, PM me and I will give you the specs you need for a 6BR that will shoot
