Made & Chronograph'ed some loads & some surprises.
110 gr. Sierra HP ( Varmint bullets )
19 grs. H110 powder
Avg. Vol. --2280 fps
ES----------82 fps
SD----------24 fps
110 gr. Barnes TSX
19 grs. H110 powder
Avg. Vol. --2341 fps
ES---------24 fps
SD --------- 9 fps
A Nosler 125 gr. load was compared because I loaded the same powder charge for them , a year ago.
125 gr. Nosler BT
19 grs. H110 powder
Avg. Vol. --2195 fps
ES ---------174 fps
SD --------- 62 fps
Both the 110 gr. loads were well over the stated FPS in the loading data of 2100 fps.
No over pressure signs were evident in the cases or primers .
The Sierra bullets were loaded in RP 300BLK cases & the Barnes bullets were loaded in cut down & formed ,LC brass.
The Sierra bullets with there large HP feed for the most part fine , although when double tapping at the end of the testing ,I did have a FTF on the last round .
The Barns bullet shot real nice with the results & @ 100 yards & I want to do more long range testing with this load out to 200 yrds.
Its funny , I know it was only twenty yards for the data from the Chronograph , but I shot ten rounds of each load & it put just a small hole in the target . You would have thought that, one of the loads would have went a stray. I mean I had three different bullets & one was heaver than the other two , go figure.
The Sierra bullets COL can be played with & I will make them longer next loading ( I will see if Sierra has something on there sight ). The Barnes load COL was from Rsilvers (ACC fame )
I will take some photo's of the cartridges for viewing.