Recent content by Marlborough Mike

Hi again. I had the Hornady jam length written on the projectile box, which I must have thrown out. My apologies for this. But I do have jam lengths for 180g Sierra game changers and Berger 205g elite hunters for a bergara 300wm (which I sent back under warranty) and the s20. You might be...

Hi. I’ve been reloading for an S20 300wm and did a jam test using a case with a split neck and 200gELDX projectile. I’m at work at the moment but can post the result up when I get home if you’d find this helpful? I should say that in the end I simply went with the recommended seating depth in...

7.6g Trail boss PPU cases 150g Hollow nose lead cast Fiocchi LR primers COAL 2.530” These shot well and were quite accurate. I tried them on a couple of big old billy goats a few weeks ago at about 30 yards. The terminal performance left a lot to be desired so I won’t be using them again as...

Can confirm that. My S20 300 win mag has 10” marked on the barrel, which I’m pretty sure is the twist.

Thanks for sharing this, and for all the great range info. I still haven’t got my S20 300 win mag down to the range yet, but my terminator TS muzzle break has finally arrived. And Burris HD signature 5-25 x 50 ready to be fitted. Have some 205 EHs prepped, similar H1000 loads to yours inside...

I’ve also had problems with a recently purchased bergara B14 hunter in 300 win mag. Couldn’t get it to group at 1 MOA or below no matter what I tried. Finally gave up and sent the rifle back to the NZ bergara dealer. I have to say that their after sales service was nothing short of outstanding...

Many thanks for sharing the figures :-) I've just graphed the numbers in Excel. Looks like you have something happening at around 75 and 78 grs. Will be interesting to see how my S20 compares. I'm running Hornady brass but everything else will be pretty much the same. The difference in stocks...

The 205 EHs sound very promising. Thanks for the steer on seating depth. We have the same problem with components in NZ at the moment although the Hornady projectiles seem to be plentiful and I have about 50 205 EHs left. No shortage of H1000 (AR2217). But cant get the 215 berger hybrids here...

Hi from New Zealand. I've just bought the sporter version of the S20 in 300 win mag. Plus I have some 205gr EH Bergers and H1000 I'd like to try. The Bergers sit out quite a bit further than 3.6" to reach the lands in the s20, so I hope they dont mind a jump! Also have some 200gr ELDXs and...