08-20-2021, 03:21 AM
That's pretty close to what I was getting with 70 gr Nosler Ballistic Tip Varmints (interchangeable with the Varmageddons) out of my 18" BHW 243 LBC with Benchmark. I was able to approach 3050 before I went into bullet conservation mode - that was last summer and I use them in my 6x45.
Remember that your using virgin brass which is essentially base sized. Your case capacity will go up a tad and I've found velocity to increase a bit when using the same charge in fired brass.
Even if you end up around 2900 at around 28.0 gr and have accuracy there (looks like you have a flat spot there, but I've always viewed Satterly as prone to misinterpretation due to normal statistical variances) that bullet is devastating within ethical ranges. I've found accuracy holds to about 300 before dispersion increases while the BTV is good to 450+ before it gets wonky. I do 2960 out of my 24" BHW 6x45 and it is an extremely fast barrel based on published data.
With the bolt not locking back, did you stack the ladder in one mag? You may have had enough pressure to cycle but not lock through the ladder and didn't notice it until the end.
I'm definitely looking forward to seeing your accuracy results.
Remember that your using virgin brass which is essentially base sized. Your case capacity will go up a tad and I've found velocity to increase a bit when using the same charge in fired brass.
Even if you end up around 2900 at around 28.0 gr and have accuracy there (looks like you have a flat spot there, but I've always viewed Satterly as prone to misinterpretation due to normal statistical variances) that bullet is devastating within ethical ranges. I've found accuracy holds to about 300 before dispersion increases while the BTV is good to 450+ before it gets wonky. I do 2960 out of my 24" BHW 6x45 and it is an extremely fast barrel based on published data.
With the bolt not locking back, did you stack the ladder in one mag? You may have had enough pressure to cycle but not lock through the ladder and didn't notice it until the end.
I'm definitely looking forward to seeing your accuracy results.
#FJB