I’m looking to see what ammo others are running for 100 yards in there 457 MTR I’ve been using SK RED,SK Orange,Federal gold std,CCI MM so far none of these have given me any consistent results.im using accu-tac bipod with a barrier on table,bags or ears on rear,Athlon 6X24X50 have action torqued at 20in/lb .AT 50 yards its getting consistent 1/2 groups down to one ragged hole with 5 shots ,at 100 she really opens up 1 1/2 to 2 inches and greater at times.
CZ 457 MTR ammo?
- Thread starter Chubbyduck
- Start date
Try some better (more expensive) match ammo.
CCI MM (minimag?) isn't known to be particularly accurate. SK red should be ok though, however different batch can vary a lot.
Do you notice the groups have vertical stringing in them? If so then chances are it's the ES/SD/inconsistent speed of the ammo.
That being said, 1.5" at 100 yards isn't bad at all, to get less than that you need to be using batch tested, high quality ammo.
Eley Match/Tenex, or Lapau Center X/LR/SLR is what I'd try, however you can still find that the rifle is picky between certain batches.
CCI MM (minimag?) isn't known to be particularly accurate. SK red should be ok though, however different batch can vary a lot.
Do you notice the groups have vertical stringing in them? If so then chances are it's the ES/SD/inconsistent speed of the ammo.
That being said, 1.5" at 100 yards isn't bad at all, to get less than that you need to be using batch tested, high quality ammo.
Eley Match/Tenex, or Lapau Center X/LR/SLR is what I'd try, however you can still find that the rifle is picky between certain batches.
- Nov 3, 2010
- 11,119
- 24,872
If you are still running the CZ barrel, I have found the best performance is R50 spd 331 or 332 and Center-X spd 329 and 330. The last target in my match is a 1.5 inch 10 ring and a .8 inch X ring and I have held that target at 150-14X and 150-12x with each of those 2 suggestions. Another guy at my local range went to the Lapua test center and came back with the best ammo was Center-X at 329.
David
David
We will give ELEY Team a try,From what I’ve seen most people are saying there 457 does NOT like ELEY but then again every barrel is different.I will also get test boxes of Lapua,Eley,RSW
Thanks
Thanks
You can't just try a box of each and then declare that each ammo performs a certain way. The performance of rimfire ammo varies as much from lot to lot within the same ammo line as it does from one type of ammo to another.
You need to determine how much you want to spend on ammo. Then get a few boxes of different lots of ammo in that price range. Many shoot Eley Match in the black box.
The Match ammo is the same as others in the vertical line. Same machines that produce Team are producing Match. The only difference is that when each lot is tested, the lots that perform less consistently are labeled Team and those that perform more consistently are labeled match. You are paying for consistency.
Its the same with SK. Standard plus is the same as long range Match. Long range Match costs more because its more consistent.
When I choose lots to try, I usually go by velocity. My rifle tends to favors ammo rated at about 1050 per second.
These days, Ive been using SK Long range Match as my good ammo and standard plus as my practice ammo. I use SK semi auto for informal shooting.
Oh, I should have mentioned that Ive had good luck with federal auto Match. Its a far cry from Match ammo, but it produces very good groups often enough to keep you interested. At 100 yards, I can hit a golf ball 7 or so times out of 10.
