Lapua Test Question

[wkdickinson]

I am considering sending/taking my 1413 to one of the Lapua Test facilities for "lot testing". The rifle has a Harrells tuner on it. On the Lapua website they say to leave accessories on the barrel (including a turner). My question is - how do they know what to set the tuner at for testing lots of ammo? Wouldn't it be better to lot test with no tuner, find the best lot, then use the tuner to dial it in?

I hope someone has already dealt with this and can help me understand.

 

[LitLBoy]

your biggest problem will be getting a hold of them!

 

[buckeye68]

your biggest problem will be getting a hold of them!

I’ve been to both locations and never had an issue with either.

 

[Topwater]

I took mine to Marengo Ohio with the tuner on it. There was no issue. I did adjust my tuner a bit, once the new Ammo arrived.

 

[grauhanen]

The testing facility will not adjust the tuner to find the best setting. When testing at the facility, find the best lot(s) of ammo with the naked barrel and then at your leisure use your tuner to improve the presumably already good results.

 

[Hi-NV Shooter]

I am considering sending/taking my 1413 to one of the Lapua Test facilities for "lot testing". The rifle has a Harrells tuner on it. On the Lapua website they say to leave accessories on the barrel (including a turner). My question is - how do they know what to set the tuner at for testing lots of ammo? Wouldn't it be better to lot test with no tuner, find the best lot, then use the tuner to dial it in?

I hope someone has already dealt with this and can help me understand.

Unless you have complete confidence on your tuner setting, then yes test with the tuner. confidence in the tune would mean you can shoot in any condition and as long as you call it correctly it will go where you want.
if not then best to test without the tuner,14mm or better is good for a factory barrel with no tuner.
FYI, of the two times I tested at Lapua ever lot I bought I was able to better the test results when I shot it at range like I normally do. the best went from a 11.68mm for 10-shots to a 9.22mm for 20-shots outdoors.

Lee

 

[shortine]

Lee, You're scaring people with the 20 shot eigth inch groups. . A lot of folks just threw thier ammunition away.

Gerry

 

[shortine]

Lee, Apparently you tested both times with the tuner installed. Did you set your tuner up with Lapua ammunition (Hopewell) or did you use Purdy method?

Thanks,

Gerry

 

[grauhanen]

Unless you have complete confidence on your tuner setting, then yes test with the tuner.

To clarify, unless (or except when) you have complete confidence in your tuner setting, then don't test with the tuner. In other words, if you're not completely confident that your tuner setting is the best for the rifle, test with the bare barrel.

 

[Hi-NV Shooter]

Lee, Apparently you tested both times with the tuner installed. Did you set your tuner up with Lapua ammunition (Hopewell) or did you use Purdy method?

Thanks,

Gerry

Gerry, The first time was with heavy tuner setups. and I mean heavy total weight of 32-oz. my 1411 did poorly when shot using the jig. my Falcon had to be clamped by the barrel so that basically removed the tune. I found a lot of CX that shot 12.14 @50 and 18.54 @100 now this was with the barrel clamped. this was 2016, I learned ammo performance is what you should be looking for and not tuner performance.
fast forward to 2019 using lite tuners under 5-oz the 1411 got @11@50 20.88@100 all testing was done off a special platform so I could use my Pappas 1-piece. The Falcon got a 11.68@50 this lot shot the 20-shot group of 9.22mm
How I tune is starting with the tuner turned all the way in even if past zero and adjust by only 5-clicks at a time, sort of a modified Hopewell but with smaller adjustments. I don't use the PRX, in my testing it is inconsistent in finding and keeping a rifle in tune. all my tuner settings are under 100 with the lite tuner.
how good is this method, I got a factory Anschutz 1413 to shoot a 11.86@50 same time I tested the other rifles. with the exception of the 1413 all my barrels are chambered using the Nevius chamber.
I only shoot Lapua

Lee

 

[Hi-NV Shooter]

To clarify, unless (or except when) you have complete confidence in your tuner setting, then don't test with the tuner. In other words, if you're not completely confident that your tuner setting is the best for the rifle, test with the bare barrel.

That is exactly correct. best to look for ammo performance and then use the ammo that shot the most consistent to tune with.

 

[R.Morehouse]

I am new to RF and have a Harrells that came on my Anschutz. I was fortunate enough to get the gun with ammo and the tuner set for it. I use a tuner ( at the muzzle ) on my CF and did successful load development with the tuner on at the 0 setting. Isn't it just an added weight to the end of the barrel? What I am trying to say is, I would think you would choose/find the best RF ammo with the added weight on the end of the barrel. Once you establish that then you can adjust that weight and at that point, the weight becomes a tuner. Am I getting that wrong? Is rimfire different than CF in this respect?........Thanks for your time.

Regards
Rick

 

[Hi-NV Shooter]

I am new to RF and have a Harrells that came on my Anschutz. I was fortunate enough to get the gun with ammo and the tuner set for it. I use a tuner ( at the muzzle ) on my CF and did successful load development with the tuner on at the 0 setting. Isn't it just an added weight to the end of the barrel? What I am trying to say is, I would think you would choose/find the best RF ammo with the added weight on the end of the barrel. Once you establish that then you can adjust that weight and at that point, the weight becomes a tuner. Am I getting that wrong? Is rimfire different than CF in this respect?........Thanks for your time.

Regards
Rick

First off I know nothing about CF, but the biggest difference is that you can match the load to the rifle with CF. in RF you have to find a consistent lot to tune with, so how to do that especially when you haven't found the tune yet. in your example, you develop a load to match the weight already on the barrel, again with RF you will be testing multiple lots to match the weight on the barrel. it is easier IMO to find one consistent lot first then tune with that lot. and again I know nothing about CF, but in RF you are timing the bullet's exit from the barrel ideally with the correct amount of weight. it is possible to find a setting adjustment that places the correct weight forward of the muzzle where you can shoot multiple different lots and not touch the tuner at all, ever again. all you need is consistent performing ammo.
as you noticed I said correct amount of weight, because you can not adjust the load to the weight, you adjust the weight to the load in RF so you can time the bullet's exit to what the barrel will shoot at its best.
if you just have weight on the barrel without it being adjusted correctly, it will only narrow the lots that could shoot in that barrel. RF is all about exit timing of the bullet.
here is an example- rifle a Match 54 after finding a setting I could shoot 4 different lots that average 0.098CTC this is a target shot in a match using Lapau Pistol King which I have never shot before and randomly purchased using the same tuner setting. was I lucky, only that the PK shot consistent to allow me to shoot that target.


Lee