mtbohunter
Active Member
Hello LRH,
I recently purchased a Browning A-Bolt Medallion in 264 win mag for 2 reasons.
1. My local taxidermist and good friend has 5 of them (264's) and besides his 338's and 375's, he basically said I could not live without one. My go to has been a 25-06 for deer/coyotes and 338RUM for all larger.
2. Our local large gun store had Browning A-Bolts on close out and I could pass on the price! $640 for the 264 and $540 for a 300wm for my son who is 4... At least that is the plan
So my question is, how far can I push the 264 with Retumbo and 140 accubonds?
I loaded 20rds .15" off with 60gr and cleaned between each round. Shooting at 3 dots at 50yds for the barrel set, I got 3 holes and about filled my pants by the time I was done. Noted it was 50yds but NOT 1 FLYER!
I then loaded 3@61gr, 3@62gr, 3@63, [email protected], 3@64 and [email protected].
Shot the first 3 with .75"group @100yds & 2956fps,
Second group was.68 and 2990fps,
third was about the same 63.5 & 2976fps, (Slower?)
and 64gr were .5" & 3060fps,
and 64.5gr was .8 & 3085 but I truly believe that was my fault on the last group and all were at 100yds.
My velocity spread (Comp. electronics pro crono) was between 30fps and 60fps with all groups giving 2 shots at really close velocity then one around 50fps slower. My crony was probably way to close at about 7ft and some of the spread could have been from muzzle blast.
I was letting the barrel cool between shots at 60 degrees ambient temp.
I have good velocity at 3085 but have No pressure signs yet so I am wondering how much further to go. I am going to try 3 at .5gr higher, but how far can I run in reality?
I know the dangers of heat, but in a hunting rifle once I get over the magical 3100fps mark and have good accuracy I will probably call it good.
I have to give my taxidermist a +1 on recommending a 264 as its looking really good!
Any thoughts on top velocities safely would be greatly appreciated!
I recently purchased a Browning A-Bolt Medallion in 264 win mag for 2 reasons.
1. My local taxidermist and good friend has 5 of them (264's) and besides his 338's and 375's, he basically said I could not live without one. My go to has been a 25-06 for deer/coyotes and 338RUM for all larger.
2. Our local large gun store had Browning A-Bolts on close out and I could pass on the price! $640 for the 264 and $540 for a 300wm for my son who is 4... At least that is the plan
So my question is, how far can I push the 264 with Retumbo and 140 accubonds?
I loaded 20rds .15" off with 60gr and cleaned between each round. Shooting at 3 dots at 50yds for the barrel set, I got 3 holes and about filled my pants by the time I was done. Noted it was 50yds but NOT 1 FLYER!
I then loaded 3@61gr, 3@62gr, 3@63, [email protected], 3@64 and [email protected].
Shot the first 3 with .75"group @100yds & 2956fps,
Second group was.68 and 2990fps,
third was about the same 63.5 & 2976fps, (Slower?)
and 64gr were .5" & 3060fps,
and 64.5gr was .8 & 3085 but I truly believe that was my fault on the last group and all were at 100yds.
My velocity spread (Comp. electronics pro crono) was between 30fps and 60fps with all groups giving 2 shots at really close velocity then one around 50fps slower. My crony was probably way to close at about 7ft and some of the spread could have been from muzzle blast.
I was letting the barrel cool between shots at 60 degrees ambient temp.
I have good velocity at 3085 but have No pressure signs yet so I am wondering how much further to go. I am going to try 3 at .5gr higher, but how far can I run in reality?
I know the dangers of heat, but in a hunting rifle once I get over the magical 3100fps mark and have good accuracy I will probably call it good.
I have to give my taxidermist a +1 on recommending a 264 as its looking really good!
Any thoughts on top velocities safely would be greatly appreciated!