Frank, that is a nice bullet for 38 cal, but its too long for
a 15 twist barrel for long range.
I would go to a 12 twist barrel for that bullet.
beltfed/arnie

Frank,
I Like your 1.33" long 38 cal Elliptical minigroove bullet!
And I think it may shoot decently to well at up to 600yds
with your 15 twist 38, whether 38-55 or 38-50.
It will be unlikely to be stabile out to long range.
The Lyman mini snover 378674 at 1.31"long has shot decently at out to midrange. The Brg Traditional Hunter rifles in 38-55 is a tack driver with the lyman bullet AT THE shorter ranges with its slow twist I think 18 twist, out to 500yds.
Your bullet should work well with a 12 twist 38cal barrel.
beltfed/arnie

Frank I believe the range is actually at Millican, Or. out SE  of Bend. The ranges at Tri County in Tualatin, Or. and Douglas Ridge in Barton, Or (both suburbs of Portland, Or) have 1,000 yd. ranges.
But DR is only open to members and the 1,000 yd. range is only open on Thursdays. The Tri County is members only also, but 1,000 yd. range is open every day. But Tri County takes 18 months on the waiting list to join! I've been on their list for 3-4 months now, waiting to get an opening.
DR is open membership, and pretty quick to get in. Both clubs may have Longrange matches open to non members, but not sure if any are strictly BPCR type matches.

Cross stick rules can be found at BPCR under "artificial support" 5.2.1:

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Chris,
Does that mean that you can have a "foot" on the end of the X-stick, to maintain it in a vertical position, w/o falling?

Is the 3" spike hand installation, allow a hammer? 

I did some reading on a site, talking about a power factor. It requires one of 510 (vel x wt /1000). In doing the math for it, I find that a 38 needs min of 365 gr bullet and 1400 fps, to qualify.

Is that power factor required at all LR matches?

Frank

frnkeore wrote on Dec 21^st, 2018 at 1:25pm:


The rules for bpcr silhouette and NRA target rifle are a bit different.
The stuff quoted above is for silhouette, but the bptr rules allow for using wrist rests , cross sticks, or slings, and they are also trying out a benchrest allowance for shooters who can not get into prone or sitting position, due to health/age reasons.

frnkeore wrote on Dec 21^st, 2018 at 4:58pm:


Frank I think that is the idea with respect to the foot.   

Every match I've ever been to has allowed you to hammer in the x-sticks.  Many people drive them in deeper than the spikes.  i.e. the wood gets driven into the ground too often.  Some places have really soft dirt and it's a safety issue if the guns are falling over as they are being fired.   On multi day matches the soft ground gets really chewed up.  On the other hand, some places like Ben Avery you think you are going to break the sticks just trying to get the spikes into the ground as it's so hard.  That's a nice problem to have.

As far as I know only Raton uses the power factor.  But I could be wrong.   Don has shot in a lot more places than me, he will tell us I'm sure.   I've never seen it used.  I'm sure though that if someone is lobbing unstable whizzing bullets into the pits that they'd be asked to stop    

Chris.

Vall,
That was my first concept for a X-stick arrangement but, after reading the rules, your only allow two pieces of wood. The bolt that they allow, can be tighten, to hold the two pieces, pretty tight.

Also, after reading the rules, I think one of the main reasons for the spikes, is to allow the X-sticks, to stand, on their own. They cite that a rifle should not fall when supported by the sticks or, something like that.

Frank