Short freebore would be my guess.
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Ladder Test Results - 30 Nosler - 215 Hybrids
- Thread starter Longtine88
- Start date
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fnlights
Well-Known Member
That probably is it. I am not sure when he got the rifle from APR, but maybe they have since changed reamers. When I talked to them about my 30 Nosler build, they made it seem like they really only ever run the SAMMI freebore. I am assuming that is what the OP has because he got it right off the shelf there. But pushing the 215's accurately at 3050 is a deadly combination no matter what the freebore is
My guess is either somehow got a short freebore or he has a really slow barrel lol
I'm talking Sierra's hitting pressure at just over 2900FPS.
I will bet his is saami and Longtine's isnt
Have APR lengthen the freebore with a throating reamer.Im a grower not a show-er haha!
But yeah its short
sierracharlie338
Well-Known Member
I've heard and read the same from several people. Do you know what reamer yours was cut with?
Yes mine is a SAMMI chamber and the pressure is just ejector marks. No flat primers or tight bolt up to 2940ish but also no nice node like at 2870...
When I talked to Robert about it he offered to do that but I live 5 hours away and hadn't put more than like 20 rounds through it. I decided to try it with the chamber as is but if I can't get in the 2950 neighborhood after a couple hundred rounds I'll have it re cut
Depending on how brave/confident you are, you can buy the reamer directly from PTG.
Speaking from experience, if you decide to do it, take it SLOW and measure OFTEN. When dealing in measurements in thousandths of an inch, it's very easy to over cut it.
I'm probably going to have to set my barrel back and rechamber it as it overshot it by about .020 by being too aggressive with it.
fnlights
Well-Known Member
@Longtine88 do you know if yours is a SAMMI reamer?
I'll bet the farm with a CBTO at 2.77 it isn't.
Hes likely in the neighborhood of 3.6 to the lands. I'm guessing atleast .200 freebore.
fnlights
Well-Known Member
Yeah that is true.. I am considering giving them a call and seeing if they could make sure that mine has sufficient freebore to run the 215's. What do you recommend? I would love to be pushing the 215's in the 3,000 - 3,100 range with H1000
I'll call Robert and ask.
I'm seeing very similar numbers just a bit slower in my apr built 30 nosler.
I'm running 82.6 grains of H1k and 230s in a 26 inch Muller barrel at 2980. That's getting an average of .5 or better at 600 yards.
I'm running 82.6 grains of H1k and 230s in a 26 inch Muller barrel at 2980. That's getting an average of .5 or better at 600 yards.
if I could only get my hands on 230's!!! I bought this one to shoot the 230's. Been trying to get them for over a year
fnlights
Well-Known Member
Let me know what he says! I am curious because I might be giving them a call and having them adjust my build sheet haha!
