Ok. I wasn't sure. That's a looong jump. Thanks @JWB and @gundoc. The bbl I'm playing around with has a very short lead. For example a coal with SGK 165 or 180 touching lands is only 3.250". Quite different from what I've been used to. The bolt face to lands distance is 2.57" but the lands seem to be tapered. (It's a new bbl.) I can seat the bullets further in (about 30thou' with clear contact using carbon on the ogive / shank with no extraction problems. A firm to almost tight jam using bolt camming allows coal length to be increased about 40thou from "just touching"(hand pressure with Hornady tool) the start of the lands. Makes things interesting.
Is there 5-600 yard shooting at Te Puke on Saturday? if calm wind I might get there.
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