01-23-2014, 03:34 PM
Tedward Wrote:After talking to Satern yesterday, he also said the Grendel was designed around lighter weight bullets, 108gr to 120gr, so since things have changed in bullet development over the years, the Grendel Chamber and throat haven't.
Take this comment with a grain of salt!
The Grendel Reloading Handbook has loads for bullets all the way to 156 grains.
Many of the original factory loads were with the 130 gr Scirocco and the 129 gr SST.
What HAS changed is that more lightweight bullets are working their way into the market.
It is true that SAAMI certification freezes a chamber and throat specifications. That is a good thing.
When a bullet designed for that cartridge, as all indications suggest is the case for the 123 gr SST, does not fit when loaded as a factory round, something is wrong.
Remember, factory loads headstamped "6.5 Grendel" MUST function in barrels stamped "6.5 Grendel." If you have problems with more than one flavor of factory ammunition, it is time to contact the rifle or upper maker. If only one of several factory loads don't function, then it may be time to contact the ammunition manufacturer.
Another way of putting this, is that SAAMI certification gave a standard that both rifle makers and ammunition makers must adhere to for a particular cartridge.