I bought an LRB M-25 built to National Match specs about two months ago and have been wringing it out. It's in a McMillan A-3 stock with a Leupold 3.5X10X50mm scope with the illuminated Mil-Dot reticle.
It was about 20F this morning sunny and clear, not a trace of wind. I headed out to the country to my 500 yd range. There was a little snow and the hayfield was frozen hard so I could drive all over it.
After I dug my bench out from under a tree and swept it and my stool off, I set up some targets at 200 yards.
I set up the M-25 and fired a five shot group of it's favorite load (168 SMK @ 2575fps) and then tried out some other loads I'd made up. So far I haven't been able to match the Sierra 168gr Matchking's accuracy with the less expensive Nosler's, but I'm still trying. The Sierra shoots sub-moa the Nosler about 1.25 moa.
Then for the fun stuff. With my zero established at 200, I set targets up at 100, 200, 300, and 400 yards.
I fired a three shot group at each target and then measured the POA/POI differences. After marking my shots I could see that the POI almost perfectly coincided with the the top of the illuminted part of the reticle at 100 yds, cross hairs at 200 yds, 1st dot on my reticle for 300 yds and the second dot for 400yds. Oh yeah, the 3 shot 400 yd group was 3 1/8"!!
So, I fired another round using these for aiming points. The 300 yd group was centered at 6 O'clock on my 3" aimining dot and the 400 yard group was about 2" low and in 2 5/8" for three shots!
I set up three gallon milk jugs full of water at 400 yds, held the secound dot on the upper left shoulder of the jug and hit them all with 4 shots.
I've got a 15" gong set up at 460 yds and holding the third dot on it I could see the bullets striking POA.
I also shot 5 rounds of the American Eagle M1A load at my 400 yd target, they show 2690fps on my Chrony and hit 8" higher than my load in about an 8" group.
I think I'm getting a good start at figuring out this rifle.
Plan to run it out to 800yds next time. Would like to get good data to 600 in 50 yd increments.
I had a blast!
It was about 20F this morning sunny and clear, not a trace of wind. I headed out to the country to my 500 yd range. There was a little snow and the hayfield was frozen hard so I could drive all over it.
After I dug my bench out from under a tree and swept it and my stool off, I set up some targets at 200 yards.
I set up the M-25 and fired a five shot group of it's favorite load (168 SMK @ 2575fps) and then tried out some other loads I'd made up. So far I haven't been able to match the Sierra 168gr Matchking's accuracy with the less expensive Nosler's, but I'm still trying. The Sierra shoots sub-moa the Nosler about 1.25 moa.
Then for the fun stuff. With my zero established at 200, I set targets up at 100, 200, 300, and 400 yards.
I fired a three shot group at each target and then measured the POA/POI differences. After marking my shots I could see that the POI almost perfectly coincided with the the top of the illuminted part of the reticle at 100 yds, cross hairs at 200 yds, 1st dot on my reticle for 300 yds and the second dot for 400yds. Oh yeah, the 3 shot 400 yd group was 3 1/8"!!
So, I fired another round using these for aiming points. The 300 yd group was centered at 6 O'clock on my 3" aimining dot and the 400 yard group was about 2" low and in 2 5/8" for three shots!
I set up three gallon milk jugs full of water at 400 yds, held the secound dot on the upper left shoulder of the jug and hit them all with 4 shots.
I've got a 15" gong set up at 460 yds and holding the third dot on it I could see the bullets striking POA.
I also shot 5 rounds of the American Eagle M1A load at my 400 yd target, they show 2690fps on my Chrony and hit 8" higher than my load in about an 8" group.
I think I'm getting a good start at figuring out this rifle.
Plan to run it out to 800yds next time. Would like to get good data to 600 in 50 yd increments.
I had a blast!
