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hoghunter
06-17-2009, 03:11 AM
Anyone have starting load for 20 BR using 50 gr bergers and H-322 and 50 gr bergers and Benchmark powder

Alycidon
06-18-2009, 06:31 AM
H322 is way to hot for the 50s IMHO. I have never used Benchmark so cannot comment.

Last week I loaded 26.0gr of H322 (+Fed205 match) under some 40gr Vmax and pressure wise that seems ok in my rifle. 27.5gr was top load with cratering at 28.0 with 40 gr bullets not 50s. Accuracy at 200 yards was dissappointing but I suspect they are not seated deep enough as I seated them to the same seater setting as the 50s.

I am getting very good results (.2MOA) with 28.0 of Vit N150 (+ Fed 205 match) under the 50s, way downloaded I know but sweet shooting and very accurate. I get cratering start at around 30.5 or31.0gr from memory. I have also used larger quantities (up to 33.5 gr ish) of N160 and N550, generally poorer accuracy wise and no gain in velocity. I was looking for more velocity at the same or lower pressure, bit of a holy grail really!!.

I will now start playing with lengths, primers etc on 28gr to 29.5 gr loads of N150.

Loads are as stated in my rifle and not warrented for any others,

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